Limited telepathy I kinda understand, ilithid are telepathic. But super-jumps? That's not really a iIlithid thing.
The tadpoles are supposed to be EATING YOUR BRAIN, how does that grant you super-jumping?
Illithid can levitate at will, an ability that defies gravity a bit - but not as permanent as levitation - would be explainable then as well for characters with tadpoles.
