I've never been a fan of these builds. The healing is just way to weak to bother with. Using the 3 shouts with soldiers runes is fine, but I'd never dump more than 20 points in tactics.
I actually wanted to make a shot warrior. My problem isn't so much with the healing (it looks really powerful in this one), but that shouts are sooo lame. Other than using them just for the sake of healing, a lot of them don't really give you any good buffs.
I maaaayyy try this, but I'll likely still go with the banner build.
Those 3 shouts (well, mainly FGJ! and SiO) are some of the most powerful utility skills Warriors have. While banners can be pretty good, I find them rather clunky, and the fact that some random scrub usually runs off with them makes me rage.
"Fear me!" is crazy powerful as well, although I assume it wouldn't heal anyone... Do they have to be affected by the shout, or just in range of it? It's outstanding in WvW where this build would be at its strongest.
Edit: Actually I guess just in range, since he's using OMM to heal.
Been using a shout-build along these lines for the last few months and I'm enjoying my warrior greatly ever since.
Shouts like FGJ and SiO are quite powerful by itself, but through the faster recharge and the extra healing I think they really start standing out. The healing from shouts doesn't need allies to be affected, so even your "offensive" shouts heal just fine.