If I I want Penal nerfed that is what I would have suggested
Your "suggestions" are not clear at all. The point you most often repeat is "they simply need to be redesigned" which itself is a contradictory statement. There's nothing simple about redesigning a unit and tech structure
Not to mention "redesigning" can still be nerfing. Those two things aren't opposite
Allowing penal to fill all role from superior AI, to Anti LV to, to anti medium is simply bad design especially in faction with some many unit available to them stock and doctrinal.
If this is your problem then the only thing needed is to make the SVT and ptrs variants two different squads in the same tier. That would actually be a "simple" change. But really not necessary