I have to say, as much as I didn't like the Pyro defense because, well, I'd obviously rather not be hit, I'm kind of feeling jealous now. See, I'm sitting here at level 4 with the best AC in the party (I'm 3 over the gnome cleric and at least 5 over all the melee), my Fort/Ref are the best in the party (my Will is third out of 5, behind the Cleric and Magus) and the only reason I don't have the most HP is because the GM gave us all max HP and there's a Barbarian in the party (which bumps her base advantage from 2 per level to 4). So, yeah, I feel like I'm kind of wasting my resilience sitting in the back blasting. Without Weapon Finesse, it's pointless for me to take Kinetic Blade, so, I'm just kind of "stuck" being the toughest backliner ever.
However, if I had Searing Flesh, I could run up to melee range and provoke a lot. Yeah, I wasn't interested in Pyro at all before, but now, I'm thinking a Pyro Blade/Whip specialist might be really fun, to take advantage of the crazy toughness we end up with.
That's a great point, mpl. My pyro just hit level 3 picking up weapon finesse and for the first time in his PFS career I'm looking forward to bait enemies into melee to take advantage of kinetic blade + searing flesh (2 burn for 2d6 Fire damage) + high hit points.