G2 is still a good team, but nothing more. A good team. Without Tejo, they are an average team in the sense that they have absolutely nothing that makes them one of the best of all time in the history of competitive gaming. You can say that Trent is still a good player (and, in fact, he is), but stop getting emotional saying that he is the best initiator of all time, he is not even the best Sova of all time.
TH and MIBR are the biggest losers of this Masters, without a shadow of a doubt. Teams that can be very good, but that rely too much on good plays from their duo of aces (Miniboo and W00t; Aspas and Cortezia). Teams like that certainly win matches, but to win something on a global level, you need much more than that.
TL may have risen too much in this Masters, I can say that apart from the 8 qualifiers for the playoffs, they are the ones that have risen the most in my opinion. Nats is indeed the best sentinel of all time, and their mental resilience to reach 2 OTs in the elimination match against a super aggressive team like PRX is amazing.
PRX may even rise to the top of the global rankings once again (and honestly, I really hope so), but they still make those mistakes worthy of PRX (and I must say, of almost every competitive team in the history of this game). Something is almost always forgotten when talking about the best duelists in the game, sometimes he throws away a few rounds, but he is still a formidable duelist.
About the agent meta, Tejo's nerf made the game much healthier not only to play, but to watch at a high level. Of course we still have problems (I'm talking to you, Vyse) and Breach continues to be an excellent agent to be used on any map (even more so now that teams have realized that, as important as obtaining information from the map is to dominate spaces on the map, all thanks to Tejo, I must admit), but there is no a mega polarizing and oppressive agent in the game RIGHT NOW. I hope it stays that way.
About the teams that are playing the best competitive game so far, I think Sentinels is a step ahead of the teams that came from the "swiss round" (Riot NEEDS to change this tournament format urgently, for Christ' sake). I believe that G2 played a good game, despite looks a little bit confused in some rounds without Tejo in the comp. PRX is on fire, despite the setbacks in some rounds. I have high expectations for Gen G and Fnatic. Let's see.