No thanks, just not same lvl dinos. Then you can just put even more dinos in trash along with Stigymoloch gen 2.
I’m facing daily opponents with 4-6 or even more lvls higher dinos than my lowest in team are. Faced opponents with lvl 22, 23 Stegodeus. My lowest dinos in team are lvl 15.
Attacks makes dinos difficult, not lvls. Lvl 10 Indoraptor will still beat other lvl 10 dinos, cause of evasive stance. Same would be with Stegodeus and Indominus.
Also caping arenas with dino lvls means majority of players won’t se arenas higher than Lockdown.
And most likely you will play same players constantly.
Only thing that is broken are arena exclusive dinos, which are mostly trash.
I’m also against deranking, as is pretty much useless. While I was in Nublar Jungle, got Triceratops only once (in last incubator before going into higher arena) and never saw Raja. Even incubators are all RNG and on long run you will get DNA that you want, no matter in which arena you are (of course if you are not in lower arena than dino which DNA you need).
Just got lucky and got a lot of Gallimimus DNA in 12h rare incubator (not capped with arena dinos), eventhough I’m in Sorna.
However, something needs to be done with matchmaking. Probably healthiest solution would be to cap matchmaking on 200 trophies max difference, except for last two arenas if there is not enough players to meet that criteria.