Pinks no longer reveal invisible champions?

So, apparently pink wards will no longer detect invisibility next pre-season? So then what is there to do? Surely this defeats the purpose of even playing the game if you're just going to get messed up, and I know it states the difference between camouflage and invisibility, I mean the argument it makes isn't even a good one - hitting a skillshot on an invisible enemy? That's real neat kiddo, to follow and chase down an invisible target is so trivial if under-levelled that it wouldn't make sense to do so.

Am I just being daft in thinking the concept of removing pinks/altering will ruin the game?