For me, SRV and Gary Moore were pretty different animals. Unlike Moore, Stevie had that Texas flavored thing going on. And, while he was undeniably a wonderful player, I always thought Gary Moore was fighting an uphill battle for recognition for several reasons:
1) He was Irish - not exactly a hotbed of blues musicianship
2) His rock records weren't IMHO great and they confused his identity as a blues player
3) He was never the main man in his highest profile gig - Thin Lizzy
4) He obviously admired Peter Green a lot (check out Blues for Greeny) and his early sound bumped up very closely against Green's - right down to that distinctive phasey guitar tone. I suspect that he was sometimes (wrongly IMHO) dismissed as a Green wannabe and that this also clouded his identity.
Later in his career, after the rock period, when he went back to the blues, IMHO he found a more personal voice on the instrument. I'd agree that there's plenty of overlooked gold in Moore's catalog, especially in that later phase of his career.
Marty