Haha, after finally listening to this so far I have to say that its amazing that any time Hal throws an awesome super-large mega monster people one hit it. XD
Yeah, after starting to listen to Rolemaster again and hearing all those giant beasts being slayed in 1 hit, I casually searched the internet upon wondering why the system wouldn't have large and super-large spell critical tables... and there were, apparently.
I'm not sure if this was an intentional houserule made before, but on the bright side, this means the party would've otherwise been totally slaughtered by the ginormous snake, worm, kraken, giant, etc. that came before.
I've listened to Hal use the large/superlarge magic crit tables at least once, so he knows that they are there. Just like I've seen him remember once that B crits do actually do crits to large creatures once, but usually forgetting that