I used to complain about the tank meta...
Now I see how wrong of me it was to hate it. The easiest way for me to explain what the meta was is this: It made games dynamic.
It allowed mess ups. It made sure that who was better at the game had a genuinely better chance of winning, even if they accidentally gave up first blood. It let you get full build in a lot of the games. You could reach your full potential. It allowed for strategy in team fights. It's not quite as easy when you all delete each other. It gave you options. You didn't have one set of items that you had to get(except ADCs) It allowed you to have fun. Even when you went that pure assassination build and complained about how tanky everyone was, you still were able to do stuff. It didn't matter what you built as long as the champion had some synergy with it.
I kind of miss it now...
tell me
more about
how utility
midlaners were
so dominant 
yeah that not really "meta" True Tanks was never good
saw last season. Also how every single champion in the game had 2 or 3 defensive items, even AD carries with
and
. And AP carries had defense in almost all of the items they had.
I'm sorry but what about that doesn't say tank meta to you?