imho modding for coh2 will never be good because
1) Relic has given up on the modding scene for coh2, that means no tools updates, and that means -
2) no functionality and needed features, which results in highly-restrictive tools. Relic wants to limit playerbase creativity as much as possible w/o looking like bad people so they only have us 1/10 of what is possible and cut off support forever.
I'm sorry but I take exception to your post.
The modding tools we have been given are not perfect but neither are they at all bad considering. Most games don't provide anything even remotely as accessible. The game does still have a few community based mod projects that are officially sanctioned projects. The recent wildlife charity skin sets are a good example.
Relic has an activate domain maintained by Sega but no longer exists. The parent company of Relic (THQ) also no longer exists so blame if any would presumably lie with Sega the games original publisher and the entity who bought up the various THQ IP's.
For a game released in June 2013, that's 4 and a half years ago and that is still being updated and patched to this day (which is more than can be said for even some AAA titles) I think you need to learn on what side your bread is buttered and be thankful for what you do have instead of musing on what you don't.