SVB was considered the "standard" bank for all startups for decades so it's not surprising that YC would give the same advice. If you run a startup out of a normal bank sometimes you get weird glitches: https://mitchellh.com/writing/my-startup-banking-story

Of course today startups are probably using Mercury/Ramp/whatever.

I don't see any weird glitches there

chase did what they were asked for years

up to the point they were told there had fraud going on, at which point the walls went up

which is entirely as to be expected