Amount you can fit in and physical condition are intensely important for sport styles. Many things you see working in MMA, boxing, MT and other comp formats only work because the competitors are incredibly well conditioned young males training daily. Much of it is very inapproporiate to an old guy like you, especially as martial arts for fighting rather than weekend hobby.
They also (with the exception of BJJ, some Judo) lack strategy for the fight and ideas about fighting, i.e. they are not martial arts systems.
I think that most people have good access to decent sports based MA in most developed countries, me included. The reason that I do WSL VT is that it provides something not available from those other sources. It means nothing to me if you try WSL VT. No idea why you keep commenting on the wing chun forum really?
If you were being consistent then by your own criteria for judging MA systems you should reject Bak Mei. It doesn't make logical sense for you to be training this system, given what you tend to say here. Why the inconsistency? This is really strange.
The boxing and judo training methodologies are entirely different, with judo containing a lot more cooperative training and application based training. Judo is also a martial art with strategy and ideas for fighting, boxing not. There is a standardised approach to teaching judo, no such thing for boxing, it being only a set of competition rules. Different boxing coaches have their own theories or styles, some good, some not so good. Utterly different. Makes me wonder if you ever tried either?