Bret Hart, Shawn Michaels, Stone Cold Steve Austin, Edge and Christian all started out in the tag division. A tag team helps young guys because they don't have to be a total package to look good. One may talk and one may be a better wrestle. They can play off of each other to improve. But, like someone already posted, if Vince doesn't like it, than it doesn't matter.
Tag team wrestling is WWE's biggest way to released and best with future endevours.
Vince doesn't care for tag wrestling you need to remember before the Attitude era tag wrestling was bad, apart from the odd tag team the more credible tag teams were put together teams, HBK/Diesel, Owen Hart/Yokozuna, Owen Hart/British Bulldog, the rest were hooky pooky tag teams with gimmicks, Smoking Guns being the cream of the crop (and that is saying how bad the tag division was back then).
Come late 97, WWE used the put together formula and hit magic (New Age Outlaws) and pretty much THEY sparked the tag division up but yet again they only had LOD to feud with which got tidious after 2 or 3 matches.
While this was happening you had jobber tag team called The hardys working their way up, Edge forging a singles career until his best friend joined WWE, and Dudley were causing havoc in ECW and by the end of 99 Edge/Christian and the hardys were looked in the TIT (Terri Invertational Tournament) basically a joke but WORKED and WWE capitolized on the teams hardcore style, fast paced style mixed with the Dudleys and you had some exciting TV.
come 2001 Dudleys, Hardys and Edge and Christian ALL agreed their matches had ran their course they couldn't really top WrestleMania X7 and felt the need to break away and do their own thing, Matt Hardy won the European Championship, Edge won the King of the Ring, Jeff Hardy won the Light-heavyweight title, Intercontinetal Title and The Hardcore title in a 3 month period all being short runs thou. Christian was giving the jealous little brother gimmick (then IC & European title runs later in the year) and Dudleys kept together with the tag belts.
Since 2001 the tag divison lacked, sure we've had some great tag teams but never used correctly, Angle/Benoit, Rey/Edge, Los Gurerrors, Worlds greatest tag team ok maybe since 2003 WWE has lacked the tag division, but bringing DX back, Rated RKO, Ric Flair/Piper weren't brought in to help the division as such it was to enhance a current storyline and just so happens the tag belts were involved (Piper had cancer so Rated RKO were giving the belts).
Tag team wrestling has it's place in wrestling but not it's main focus in WWE and it comes down to personal opinion, I think at the moment WWE has some hot tag teams that the belts could be used properly even use Santino & Koz with the belts.
The Glory years of 1999-2001 will NEVER be replicated and nothing will ever be as hot as it was back then with Tag wrestling.