Both sides suck and both sides are at fault for the current state of the game.
WPA fell asleep and didn't do enough for the sport for many decades. Pool did not grow as a sport, holy grail which is getting pool into the Olympics has never been further away, prize money wasn't getting better and pool players weren't taken care of. Plenty more minor issues too.
Matchroom is a private company that's looking to cash in on WPA's incompetence and basically privatise the sport. Generally some disruption is good for the growth but let's not kid ourselves: Matchroom Pool will cease to exist the moment they will feel they can't make money from it. For me, by default, this can't be the crown/governing organisation for our sport.
My grievances with Matchroom:
1) Pro pool is just a tiny part of the pool ecosystem and Matchroom have done very little for anyone outside the top50-ish players. They have completely ignored disabled players, women and largely juniors too. There has been zero investment into supporting the local coaches, organisations, even pool rooms. Spoke to someone who ran a WNT event last year in the USA and Matchroom's contribution is basically 0. WPA (or their subsidiary EPBF) has done wonderful things in Europe in terms of coaching, youth tournaments, etc. Just take a look at Germany or Poland's current and next generation.
2) Matchroom are far stronger on social media compared to WPA. Their videos/streams/shorts/interviews/whatever generate millions of clicks but not even one player has been paid a cent from his image rights. Must be the only professional sport where top pros don't get paid for image rights. It's a huge revenue stream for them and they're not sharing it even now (have seen WNT contract of top15 player).
3) Matchroom are ignoring all anti doping regulations on purpose. Probably because the standard of play is better if you allow players to dope but I think clean players deserve the playing field to be level. I know first hand that at least 5 players from Matchroom's top25 are using betablockers from WR3 onwards.
4) Their prize money has been shockingly low so far for what they're selling. How many players per WNT tournament are in the green after flights, hotels, food, etc? Maybe half a dozen. WPA has done even less on this front so maybe more of a general concern. Basically if you're a pro pool player neither side is really your friend. There's not gonna be a major pool tournament this year in any global cities, mostly it's just outskirts and less than ideal surroundings. Both sides happy to take the blood money and partner up with Qatar/Saudi Arabia if it means someone else paying the players and not them.