Mouseferatu
Hero
JRR is exactly right, that there's a massive excluded middle here. But there's something else that's being overlooked as well. We're comparing... Well, not apples to oranges, certainly, but perhaps apples to applesauce.
Specifically, the 1E stat block in question isn't entirely complete.
1E relies heavily on charts. Attack rolls and saving throws, based on monster HD, are found elsewhere. The stat block looks simpler than it is, in part, because it's foisted the complexity off elsewhere.
Plus, in the case of any critters with special abilities, those powers tend to be described in text after the stat block in 1E adventures--text that, I'd argue, we should count.
Don't get me wrong, if the overall point is that stat blocks in 1E were shorter, you'll get no argument. But I DO maintain that they're not AS MUCH shorter--all details being taken into account--as they appear on first glance.
Specifically, the 1E stat block in question isn't entirely complete.
1E relies heavily on charts. Attack rolls and saving throws, based on monster HD, are found elsewhere. The stat block looks simpler than it is, in part, because it's foisted the complexity off elsewhere.

Plus, in the case of any critters with special abilities, those powers tend to be described in text after the stat block in 1E adventures--text that, I'd argue, we should count.
Don't get me wrong, if the overall point is that stat blocks in 1E were shorter, you'll get no argument. But I DO maintain that they're not AS MUCH shorter--all details being taken into account--as they appear on first glance.