Maybe a bit of a necro to this thread, but as someone who has historically been against TV++, I think I know why after reading through a bunch of these posts and wanted to add my piece. The problem is the ranking system, not TV++ itself.
Lets take the two main systems I see. The 'sports team' system, used by for example football/soccer, and the 'online gaming' system, used by most competitive online ranked games.
Football/Soccer - teams are 'uneven' going into the game, like BB without TV++. Skill means one team will be more likely to win than another, even with similar 'players', like BB without TV++ (can't just buy good players without a good tactician/manager and win everything, but you can win more than you used to. Just like a powerful team in BB). Rankings are based on wins/losses and points ascribed to them, like BB without TV++.
Most competitive online games - Matchmaking tries to balance things to 50% winrates, through arbitrary rules we won't go into as they are different per game, but all aim for the same end result. Good, meaningful matchups. BBs TV++ would mean you can artificially -create- players who are harder to beat, meaning matches happen much more regularly, but would likely still default to matching with similar skill players
when there is no team difference. This covers the first two points above in the 'football' style approach. And now comes the big one. RANKINGS. These systems use some form of league/ranking ladder that shows -points- or -rank-, not win record. So Mr Fancypants McWinsalot may go 14/14/14, but he did it against people the system though should be beating him regularly, and so he is higher ranked than someone who goes 14/14/14 -against worse opponents-. Mr McWinsalot has the same result, but from 'harder' matches. Someone with 14/14/14 while being bad at the game would go something like 0/4/38 with the same TV++ adjustments that Mr McWinsalot had. That shows skill on his part. He is better, even with the same results. He is higher ranked.
This is where things fall apart for BB. As good as TV++ might be for seeing who is -truly- the best, because even with all the boosts to their TV, a new coach is going to lose a LOT of games -before- they become competitive through sheer TV bonuses, and a great coach will win a bunch before the TV bonus they give away outclasses their skill, it does not address rankings. And everyone is looking at the system as it is now, a football based system. And tbh that is rubbish. You don't want to see Mr Worldbest at 14/14/14 record. It makes no sense. Because you aren't seeing that those results were against people who were good enough. You are just seeing results. Instead, you need to adopt a completely new ranking system to make TV++ acceptable. /most/ of the coaches who hate the idea of 50% winrates would probably be on board with a ranking system where they see they are in the top 5% of coaches, instead of team win rates. And the great thing is, with a ranking system, you could be ranked based on your overall performance, not just with one random team you got great rolls on.
So yeah, long story short, in my mind TV++ isn't actually the hard sell, it is a new ranking system. Get that sorted and TV++ suddenly makes a ton more sense to me, and will allow actually seeing who the best is, and giving the top coaches a reason to play to try and climb the rankings against their peers, instead of just picking a race with no great record to try and push for a qualifying spot.