Summoners now are probably the well-rounded "fill any role in a pinch" class that Red Mages should have been. We can main heal even though we hate to. We have very useful party buffs. Post update, we can skill chain to a degree that would make even the best samurai take notice (Summoners can even self skillchain, an ability reserved for samurai only, after the multi-hit WS TP nerf). Lastly, we can magic burst for damage not severely less than a blm. Allowing for proper equipment, our Avatars can melee for negligable, if any perpetuation cost, and the damage output is now high enough to offset the tp given to the mob. Of course, at 70+ our uberness in damage is unrivalled by anyone. All this said, Summoners can fill any niche, and thus, no longer need to be pigeonholed into a single party role like any other class.