Don't make us surprise with the cost of tons of bugs in the future

It was a good thought to make us surprised (believe me, I was, in a good way), but if we have to face this much because of it not going trough PBE first isn't fun. I'm not just talking about the bugs in the client, but also the difficulty of the new gamemode. I haven't even been at the top 2 difficulties yet, and I find it way too hard. Missions should be able to be completed by casual players too, not only pro's. Spamming tons of strong enemies in a small map isn't ''hard'', it's plain stupid and unfun.

And is it only me that finds Ziggs utterly bad in the gamemode, compared to the others?