That is incorrect, they certainly do, if you look at their table for python for instance you’ll notice they specify the major and minor version for python, but leave the the patch level unspecified (ie 3.9.x) you can ship 3.9.7 and upgrade midway through the year to 3.9.10. not a problem at all.
The concern the core team had is that due to the release schedule of both python and the vfx platform, there won’t be any python bug fix releases past may since python’s 18 month support commitment ends then.