I understand what you're trying to say, but these are old points. It is quite odd.
The entire reason there are less players, is due to those that have had their games auto-update, or they manually did it to try the new version, then realised they couldn't get back on TMP. That is it.
Yes, many are happy for Convoy. I am too. It's a cool idea to have a smaller MP with friends.
The reporting "delay" as you say does seem to be subjective, as you'd need to notice and report such issues if you actually have examples of them. Too many mention these random things and they do not match what actually happens.
We had a "monopoly" by being the only MP at the time. Obviously, the creators themselves could make one. HGVMP did try, and managed something, but respectfully stepped down. There was/is another, which has yet to do so.
Technically, "SCS" won't give any bans at all, that is the point of a private, "local" MP. The only ones with the ability to ban, would be the people hosting your session.
At no point am I suggesting not to play Convoy, because it's a great alternative. But, that is all it is. Both work, both will work.
We do indeed make TMP what it is, collectively. Such thoughts are fine to be voiced.