There are quite a few glitches like dying even after using a skill which grants momentary unkillable state like Fly, dash skills & such which I don't think the devs are even considering as glitches at all. The prime reason why the game will gradually frustrate one is the "Kill Zapdos, win game" policy which is applicable 90% in higher rank games so only the last 2mins of a game counts which is not ok according to me.