I specifically asked for bottom game nerfs not submissions so they can still keep them. Regardless, Aholbert has consistently stated how the level of competition matters which hurts the Diaz bros. Jim Miller is by far their best victory (in terms of grappling resume) but that was a panic takedown counter after Miller got rocked.
This is an ingenuine argument. Shields (one of the best MMA grapplers IMO) grappled with Maia but the other four beat Maia by forcing him to stand and strike with them. Diaz bros have been taken down and neutralized. Just compare how Rory fought Nate and Maia.
Maia's and Jacare's lack of bottom submissions is because few fighters try to take them down.