Yeah same for me.
Red7 is one of my favorite games, but is much better played with 2 (it's much more tactical). Or at least with 3.
With 4 players is too much random, we just try to survive. It's like a different game.
The other problem is the long queues:
It's 20-40 minutes wait at best hours, and impossible to make a group after 10 PM Uk, till 10 AM.
With 2 players will be much easier to make Red7 Arena Games, (much faster queues) and the game will look like the same we play on tournaments.
3 players could be tested as another option. Any of those is much better than the 4 players option.