Apparently I do.
Monetization? Objectively worse, no argument.
Progression? Almost non-existent, objectively worse.
Rewards? 1 free epic a season, objectively worse.
Unlocking heroes and putting some behind paywalls? Objectively worse.
Open queue? Objectively worse because of the tank nerf.
Ranking system? Had a friend go 5/12 with leaver penalties, ranked up. Objectively worse.
5v5 objectively has more balancing issues than 6v6 does. Sure, things like double shield are no longer a thing, now instead we get snipers being perma-meta, off-tanks being forced into a state of being worthless or broken, members of the roster being indirectly buffed and Blizzard not bothering to address it. Whether you find those issues to be worse or better than the issues of 6v6 is subjective, but 5v5 objectively has more issues.
Factual statements, not opinions.
Also you didn’t bother to argue because you simply cannot.