Well, I found a few relevant threads on this on TBB involving many of the same people discussing it now.
(Sorry Chet) In this one, Chet says only one player can be piled on.
http://www.talkbloodbowl.com/phpBB2/viewtopic.php?t=1365
On this one, Darkson asks pretty much the same question, and gets an answer from Galak on the PO subject:
http://www.talkbloodbowl.com/phpBB2/viewtopic.php?t=4208
Perhaps this should be on the Hot List? It is not there currently.
you'd allow the Multiple Blocker to use Block skill to knock down both opponents, wouldn't you?
Its one of those very rare occurances anyway, and hardly a game breaker either way. In fact I'd be tempted to adopt the strict interpretation because it weakens Big Guys a little bit more (as the most likely Multiple Block/Might Blow players)
yep, a good example of "roll a dice to settle it then discuss in the pub"