Well, assuming he's playing draft pick, yeah, you'd like to have a Taric/Leona supporting that can get out easily without blowing a summoner spell or ultimate and that can in fact be more harmful to them now that he/she's close.To me that's never good advice about blitz, cause no matter how prepared you are.. he's going to land a grab eventually.
I think the better strat is to lane someone who doesn't mind getting grabbed (leona?, and smacking him down when it happens. Make him afraid to grab you.
Cait is a good ADC to run against Blitz since you basically have semi guaranteed brush control with your traps and minimum support effort.