To be honest i don't find the meta is that boring nor repetitive. The rare times i've seen the same team over and over i checked and all 6 or 7 accounts were in the same guild. So there is that too, people sharing teams with nubs in guild so that they have something to progress with (or maybe pvp on multiples accounts by one guy but that would be illegal).
If you just complain with the fact you see a lot of trick room, rain teams and stall then showdown is not any better...