Annie flashed into our carries

Stacking against an AoE comp sounds like the recipe for success.

I'm honestly surprised you were dumb enough to stick your carries so close they 1) got hit by a fairly linear skillshot and 2) stick around long enough to have Annie come in to ult. There's a simple counterplay to Annie, it's knowing where she is and when she is preparing to ult. If she starts autoattacking minions nearby, she's saving up a shield/stun combo. It's not hard, man. If you can't see her, assume she's over THAT wall, getting ready to flash over. You were clearly outplayed, yes.

she has flash, everyone has access to the same spell. there's nothing to complain about. Better reflexes maybe?