The RRHOF is a "hall of fame", and by definition not necessarily obliged to acknowledge innovators or those who expanded the vocabulary of rock music, so I guess we shouldn't expect to see Area, Can, Captain Beefheart, King Crimson or Van der Graaf Generator inducted anytime soon. This aside, i'll beat a dead horse one more time while thanking Rockdanny for taking the high road regarding an earlier comment.
Here's the deal. Hendrix used feedback, vibrato, volume and pedal effects in ways that none of his predecessors did. SRV absorbed and emulated what Jimi did at an early stage of his development and cited Hendrix as his primary inspiration in several interviews. Those hanging onto the notion that SRV (who admittedly has a solid blues foundation) eclipsed Jimi or is not mostly Hendrix based as a player are dead wrong. It could rationally be argued that guys like Jean Paul Bourelly, Kido Natsuki, Akin Eldes, David Fiuczynski, Bambi Fossati, Ax Generich, David Torn, Sonny Sharrock, Larry Coryell and John McLaughlin (circa Devotion) have reached higher while standing on Jimi's shoulders.