It seems to me like Raven wanted to have some upper limit to the size of the main humanoid gla. With JA having many more fighting moves (with double sabers etc), they cut down the number of animations for cinematics in the main gla.
However, you should notice that in JA you can have one extra, map specific gla file that can contain as many as 50 animations. So, you aren't in quite as bad a situation as you probably thought. Browse through the original Raven glas to see if one of them might have interesting animations. Or make your own...
And get JA SDK instead of JO SDK, if you are mapping for JA. Works better that way, yes it does.
And anyway, there's no need to try to guess anything. Just use ModView to check the animations.
Frozen by ICARUS