Do the various BP's add much? No, is it nothing, No. Haste does more than add EF ticks, it lets you cast faster and give you more burst healing. It comes at a mana expense, but it does give you more burst. Saying Haste does nothing is a mistake, it is still valuable. But as you can see the difference between 25% and 45% haste is small, all of our gearing choices make fairly small gains in our output. Item Level and proper use of abilities and CD's mater the most.
As for Fractalize: There is a difference between optimal and viable. Having 14k mana for SH is not optimal but it is still viable. At your Item level if you converted 2k spirit to mastery you would gain about 4% more output. 4% is not make or break. You can keep your gem/reforge and swap back an forth and know you are not destroying your output.