GameTrailers vs. ESRB on Pulled Fallout 3 Trailers

GamePolitics brings word that the ESRB has forced GameTrailers (and other websites) to pull all of their Fallout 3 trailers, which has since led to some pushing and shoving. Apparently this all has to do with the ESRB's "advertising guidelines", which frown upon the usage of exploding heads. Anyway, the GT staff sounded off in their latest podcast:
The segment on the ESRB starts just after the 26-minute mark of the podcast. Here's a sample:

Shane: You may wonder why all the trailers ever released for Fallout 3 were removed from GameTrailers.com. Well the reason that happened is because of our good pals at the ESRB.

Grumpy: Wankers! ...I am just absolutely flabbergasted about the ESRB. They're a bunch of bleepwads sitting in Washington.

Shane: Hear, hear!

Grumpy: ...they get publishers to pull video footage. They assisted in getting the Fallout 3 ads taken out of Washington because some dumb bleepwit... on a bus got upset that they were showing images of decimated Washington...

Shane: Never watched a movie before!

Grumpy: Exactly. It's a futuristic, post-apocalyptic game. I am so sick of this nanny state... they are not a government organization. They are a body made up of unqualified nincompoops... unfortunately, they're taking the nanny state to the nth degree... They make the FCC look like a bunch of broad-minded, non-censorship individuals... It sucks that Bethesda had to pull all this Fallout 3 stuff, because it was bleeping good media...

Shane: All age-gated...

Grumpy: ...nobody could get at it. But because some little toe-rag at ESRB decides to get pissed off about something, all that good work is gone... Good job, Bethesda. It sucks that they have to kowtow to the ESRB...

Shane: I hate the ESRB... The week before that we had gotten an exclusive on a trailer... suddenly we get a call... and the publisher is telling us to take it down because of the ESRB... The ESRB can only regulate media that the publishers send us. Anything that we create in-house, as GameTrailers, they can't touch... we'll make our own violent-as-hell trailer that they can't do anything about. So we did. We put it up, it was huge... then we get a call from publisher X [who said] "...the ESRB is putting pressure on us and so that bleep is going to run downhill to where we can't work with you guys unless you do what the ESRB says" ...they are like the frickin' Mafia... These people have totally gone like a frickin' power trip...

So is Bethesda the "publisher X" referred to above? If the ESRB is really putting pressure on them to force a third-party website to pull custom-made trailers, that sounds like quite an abuse of power to me.