I like blenders curves a lot, especially when I can import from svg and inkscape, but be that as it may…the curve tools isn´t mesh editable unlesh converting the curve to mesh, and as such I wonder how smooth it would be to work with curves and trying to bridge it? I was given an example there in that thread where I asked about a similar tool…I haven´t tested it though…not exactly what I wanted though.
Lightwave also has another great tool called Px bezier spline, if you select polys from a mesh and run the extend mode, you can extend/extrude those mesh polys with bezier handles, also some nice snapping options and constraints and changable smooth and hard handles, I am not sure there is a similar tool like that either in blender…
Blenders curves otherwise…awesome since they can be changed non destructively as they are, but they do not merge or spawn from any mesh polygons initially, like Aw bezier bridge or Px bezier.
I used to use Px bezier for when doing welding seams 2011 back in the days when I was doing some gym renders for a company, so that was handy then, had I known blender then and blender would be in the state it is now…I would probably have used that I think, not sure.
Art sphere, his still alive…he was notified in a thread over at newtek when I complained about the new native spline bridge wasn´t as good as art´s Aw bezier spline bridge…I was about to re-install it and his links wasn´t working anymore, but I found it on external drives anyway…later art thanked for the notification of the missing link…
But as You say, guess his busy with other things now as can be seen with no updates.
Maybe his waiting to see if there will be any significant changes for the next Lightwave…will see, it´s the same with me…I am a bit careful not spending to much time with the investment in Lightwave either…like creating more tutorials etc…I wan´t to see what happens as many others.
When I start to draw curves…I would actually prefer how lightwave does it, I am not that fond of the handle display or how to extend curves or adding knots while plotting out a curve in blender… pz bezier is quite nice in how it works.
The problem with px bezier and the other modeling tools in LW…once dropped you can not reuse the tool, so you need to stay in tool mode and make sure that is then final before dropping the tool…so of course the flexibility to change at any time with blender is awesome.
But also…it´s not always needed to have that non destructive workflow, it will help and can be a life saver when you want to adjust and change something from the original shape of course.
That said, I have to work more with grease pencil and some other curve tools and get more accustomed to that, before stating that it´s easier to draw out splines in lightwave.
Was planning on doing some recordings of drawing splines in Lightwave for hair, then sending to blender and applying hairnet plugin on it, and thus making particleFX hair in blender for that, as a combo method to use if someone by any chance don´t like to draw guides in blender, and then there are some who asked for getting blender particle hair in to lightwave and use fiberfx.
It´s dead easy to do that…and I prefer to comb hair in blender, so that you could use to send to lightwave and with 2019 it works quite decently to get the hair in there and apply fiberfx without crashing…But a big Butt 
The fiberfx rendertimes is killing me, that is why I do not use it in lightwave for rendering hair.
you could bevel profiling out with a curve and a shape in blender as well, so this sample below is doable…I think, but it also has extend mode, so selecting two different polys from a mesh and extend it with a curve and twisting is also doable…but not seen here, and that I am not sure if blender can do…some addon perhaps, the px bezier curves when created, can be saved as presets and reloaded, to use as flat lines, curves, tubes or polys when you start the tool and load the preset.
Do I dare mentioning truespace…haha, not the addon for blender, but that oldy software had a macro recording option, so if you did a bevel in a curve form, you could save that, then select a poly…run the macro and a curve bevel from that recording would be made, quite nice, and I don´t think ivé seen similar in lightwave anyway.
Edit: Oh… oopps… I just saw the dev dates.