Ok, Bethesda wanted to have a spell that reduced your shout recharge time. I get it.
But, it doesn't make any sense from a LORE perspective. Every divine altar offers a clear, material benefit if you pray there. As I http://www.gamesas.com/topic/1448833-why-dont-the-thalmor-recognize-talos/, this is one of the reasons why, the TES unvierse, there is no dispute as to whether the Gods actually exist.
However, with Talos, it doesn't make any sense. The Fortify Shout ability is something that is only beneficial to the dragonborn. What happens if someone else prays there? Do they only get their diseases cured and nothing else? And, is wearing an AMULET of Talos, if you're not dragonborn, entirely pointless?
If that's the case, what's the point of other NPCs worshipping him? Recall that my http://www.gamesas.com/topic/1454968-why-did-sithis-force-cicero-to-be-keeper/ that people in the TES unvierse choose to worship various gods because they are offered straightforward benefits for doing so.
Talos is supposed to be the God of War, right? Wouldn't a more sensible benfit, in that case, be a temporary boost in weapon and/or armor skills? Fortify Light and Heavy Armor 10% each; fortify one- and two-handed 10% each. No need to fortify block, since Stendarr already does that.
Or, perhaps, a flat +50 bonus to armor rating, stacking with the Lord Stone.
Ya know, that kind of stuff that ANYBODY could make use of, not just the dragonborn, in order to entice people into worshipping him.