Fixing the minimum ilevel isnt the issue, fixing the rewards handed out is.

At this point if you change the ilevel for the alliance raids you're going to have more things like Orbonne just on all levels... because only the "originals" know the starting mechanics (originals of course referring to whoever played those instances when they were first released) and that's also assuming they remember how to do the mechanics "correctly".

Most people try to "cheat" the system to get easier roullettes due to wanting things quickly for the reward their getting... and lets face it, considering the alliance raid at cap level hands out the same amount as MSQ roullette... are you surprised folks want to get the easier one (I'm not even sure there is something less than a forty five minute orbonne run sooo even an MSQ with boring cutscenes would be better.