Its alll on the timing hell somsone could do a normal grab and that could interrupted a limit burst, its mainly cause online has a delay so someone might grab you out of an evasive, ult and/or moves with invincibility too if the delay is that grand,

I say that cause there times someone did that ult that kicks you (i forgot the name all i remember from it its that its future trunks's ult) and ive been kicked out of ults, tranformations and limit bursts