Just got back from the WSOP.  Between live cash, tournaments at WSOP, Binions, Nugget and Pokerstars, I'm 3 for 22 of my most recent all-in's where I was at least an 80% favorite.  (haven't been on seals in a month or so).

That's poker.  You are going to have those runs, on any site, in any cardroom, in any format.