Because I'm looking at it similarly to other comparable situations. It is nearly identical to Merged Zamasu knocking SSJG Goku/Vegeta back into Base form. I never disagreed with the fact that God is far ahead of SSJ3, but comparing it to the MZ situation would imply that it isn't an astronomical 50x gap or anything of the like.
But if Merged Zamasu is PSSJB level, then him vs SSJGs is basically the same thing as a SSJ next to a Base Saiyan. A 50x gap. No different than Base Future Trunks taking a punch from SSJ Vegeta, or 18 dodging a blast from SSJ Trunks. Or Base Trunks taking a punch from a Cell Jr, if you want a DBS example.
Or Jiren needing his hands to put down Roshi.
It's not because he didn't do a more impressive feat that he can't do it. BoG does a big set up for how impressive SSJG is, with Beerus finger-flicking SSJ3 and taking down Enraged Vegeta in a couple blows. SSJ Black vs SSJ2 Vegeta puts a quite massive gap too, unless you think SSJ gave Black a 1.1x boost or so.
This reminds me of some dude from Kanzenshuu that insists characters aren't planet level because their fights only make craters. In reality it's just that the authors don't have to bring those mind-bogging feats after the first time, because it's already been established.
Also was that not the exact argument that you and P were using to nerf the BoDB gains that Goku/Krillin made before the 21st? I recall that you guys were arguing that Krillin should only be ~2x the Orin Temple Bullies because that is all that is required to kick someone across an entire city. If this is now your argument then it should be reflected by dramatically increasing Goku/Krillin's 21st gains.
More like the opposite.
With DB: I say these gaps don't need to be so big.
With Super: This gap was established to be massive in BoG, no need to scale them down.
DBS gaps tend to be pretty bloated because you always have to account transformations.