imo tick throwing (and throwing in general) is simply too powerful for a character like dizzy.
even if he techs or pokes you out of your throw or whatever, the risk reward for landing a throw, especially into the corner, is too good. if you throws are getting teched alot, you need to practice the spacing for dizzy's extra 4 pixels a bit more.
at least for my fighting style, going for the throw is among the top priorities of my offenseive options. in fact, the only matchups where going for a throw alot isnt a good idea are the characters with strong shoryus that hit multiple times (sol and hos).