So legendary engrams can apparently turn into PoE tokens (flight, shader, identity):
http://gfycat.com/SimilarVapidAnkole
Given that I've got 4 flight tokens in a single week, any further ones will end up being destroyed. Why these things aren't limited only to PoE is stupid. Imagine hitting level 20 and getting an engram, only for it to turn into a token of identity, something that can't be used until PoE rank 3. Rank 3 will take weeks of PoE farming, even for a max level.
Why do they keep messing up engrams?