Yeah but take into account Blazikens Coverage.
Access to two High Power Stab moves, Knock off, and Brave Bird as well.
The standard set is really rounded, and even without mega, Blaziken is a Speed Demon. If you run protect, then one protect and you're likely faster than the entire enemy team. Being forced to run Talonflame just to check Blaziken who has both power and speed is sort of ridiculous. Due to the lack of counters in the OU and UU metagame, it's ubers. It's also based on Usage. Which sorta sucks,