Well in all fairness LW is not stuck in the 20th Century, the same could also be said for quite a few 3d apps in the way they do things.
LW modeler is out of date without a doubt by probably at least 10 years but Layout and rendering native is not, yes it has its problems and also its way of doing things but so are other apps.
Blender when it first came along and even up until recently had its weird and quirky ways of doing things, in some cases still does, when i say weird and quirky of course i really mean different, which is why many people coming from other apps dabbled around with it but never got serious with it, me included.
Now of course things are different, 2.8 UI not least of all, and others are taking it seriously. How far that will go remains to be seen. Iâm not sure there will be such a big change in what the big effects houses use, thats not a reflection on Blender but more a reflection on the business model and how the likes of AD license their software.
Mostly one man bands, small effects houses and hobbyists will be at the forefront and hopefully those are the people that will drive the big changes when they get into bigger effects houses.
I spoke to a friend of mine at MPC and asked him how much inroads is Blender making, he said not much, whilst its installed and some even started on it and still use it, its not making much of a mark in seat numbers and production.
They would have to get all their coders up to speed on Blender and Python to deliver what they already can with Maya and Mel, thatâs a lot of knowledge and time spent learning. Im sure it will come but cost will always be the key and whilst Blender is free and powerful in the right hands at the moment most of the big houses dont have those hands.
Also there is the limitation of Python as well, which is a bit slow, relies on other things being installed, its also a memory and CPU hog at times. Python is not the best language for plugins/addons anyway.
Thats not saying you cant use other languages on Blender, its just that most of the addons are Python scripts.