I made a bunch of observations and referenced all of them at the bottom of each topic.
i.e. The Shaper IAS one is here: Shape attack speeds issue - Not working as intended
I am now looking at this forum to see what was covered by players and adding my 2 cents.
Therefore I 100% agree with : IAS are massive. I am all FOR greater weapon diversity, but I am AGAINST massively nerfing current builds <i.e. shapers>. Consider some mechanic that would make builds on Live do similar damage and content clearing capacity to make this IAS change viable.
Alternatively grant +teleport in shape form and problem solved.