190 DPS isn't realistic. 140 would be stretching it (and probably require 30 STR allocation and some DPS accessories, or several ilvl 90 armor pieces). 120 is more realistic.
Storm's Path is unrealistic because you can't maintain very good enmity while weaving it into your rotation, and using it when you're not applying SE, which will reduce the amount of healing your receive from Inner Beast by 11%.
You can't do 4.5 inner beasts per minute. The absolute most you can do is 4. In fact, 4 isn't possible I don't think. The most Wrath Stacks you can generate is 2 per 7.5 seconds. That means 8 combos per 60 seconds, or 16 Wrath stacks. You can add 5 for infuriate for 21. But you have to cut off 4 of the GCD's for Inner Beast which means cutting off at least 3 wrath stacks, leaving you at 18. You can get 4 inner beasts every, say, 65 or 66 seconds. OR maybe every 60 seconds if you have cooldowns up. But really, you're not going to be getting that many. Technically you should be looking at ~3.6 inner beasts per minute.
Anyhow, yeah I agree that you should only hold wrath in limited situations, and even in things like Turn 1 you should be using Inner Beast to mitigate damage. The problem is that it's really close to the break even point between using it and not using it in turn one, and at 4 stacks you should not be using it, but at 4 stacks death will be imminent anyway.
But that's why I made my little formula in the other thread: Use inner beast only when (incoming DPS - Inner Beast Heal/20)/1.08 > (Incoming DPS)/1.15. Whether or not you use it depends, primarily on the incoming DPS and how much healing your getting per Inner Beast. If you have berserk up and you can benefit from the heals, you should probably use it, also. (*p.s. I know you technically can't inner beast every 20 seconds, but the /20 is an average heal of the next 20 seconds and it approximates the average incoming healing bonus at 1.08 very well)