If it is a scrubby Tao that would just spam 3C>5D~B all day, chances are he is unable to land the hit confirm from 5D~B making the move more unsafe than if it were to hit. In that case your fastest move should be able to counter it before he can do anything. I have not tried to grab but as another Tao player you should be able to 5a or 5b out of it. Possibly drive out of it also, charge the down up drive where she jumps to one of walls on the stage to reset. You should be able to punish them easily after that or set up for a big punish.