Personally, I want a system where they convert Crit and Haste to Mastery's system and can adjust the percentages and values accordingly when it's necessary, but they don't seem to want to go that direction.
I still think that's because the reasoning is: "Haste's value is low. If Haste affected our abilities, Haste's value would increase."Because it IS true, I already addressed this ~30 pages ago in this post. If you're going to tell me that I'm misremembering 80% of the community disagreeing with me that Haste affecting rotation was the "big issue" rather than stat value, I'm going to insist that you prove it, because the VAST majority of posts that show up back then were concerning stat value.
It doesn't matter if they were "authorities" or not. We aren't discussing what the issue ACTUALLY was. We're discussing what the widespread complaint in the community was. If you think people have mostly been complaining about Haste's ability to affect Enhancement's rotation for most of Cataclysm, you're wrong. Prior to 4.3, they were mostly focused on the scaling value exclusively. As any scan of the posts of that era would show you.
I'll concede you know the MMO forum community better than me. I'm basing this on the WoW forums, and on those forums people have mostly been complaining about Haste's ability to affect Enhancement's rotation. The reasoning used was very much what I just quoted there. I could go find you any number of posts that advocated improving Haste's value by letting it affect the rotation. I could also find you any number of posts arguing that Windfury's ICD should be lowered/removed to accomplish the same goal (which it wouldn't do, but it was a very common suggestion).
To the last part, yes, increasing passive contributions also boosts Maelstrom and thus Lightning Bolt damage. I'd argue, though, that the gains auto attacks and imbues would be more significant than the gain on the Lightning Bolts, but you're free to prove me wrong.