Stop drinking the IWC kool aid. In the attitude era everyone was punch/kick. Now you'll see Ziggler's weird stuff, Mysterio's roll/springboard style, Daniel Bryan use kicks and holds, Cena use a pure WWE style, Mark Henry use a total power style. There is variety. If by WWE style you mean there aren't any silly "me scream then chop you then you scream and chop me and we repeat this 100,000 times" like in Japan then that's because that wouldn't get over. If you mean because there aren't any million spots per second matches like in Dragon Gate then that's because it wouldn't get over.
There are a LOT of different styles in the WWE. A lot more than there used to be. I swear some posts on here sound like a broken record and don't even make any sense.
I'm gonna do another IWC logic tree. The event is someone arriving. first question "is said person a net darling or net nemsis?" If the answer is net darling then the reaction is "I'm very excited but I bet the WWE ruins him by making him change to the WWE style" if he's a net nemesis the reaction is "another talentless McMahon mancrush".
See how easy it is to just recycle everyone else's opinions? THINK FOR YOURSELF!!!!
What I mean is, in the past wrestlers came into the WWE from other promotions and were straight onto the roster, wrestling their own style. They were rarely, if ever, sent to a developmental territory.
Did The Radicalz go to developmental before arriving in WWE after leaving WCW? No, as they were experienced wrestlers who were proven performers and good at what they did, as are the KOW. They were not told to learn a new style before debuting.
Did Mysterio go to developme? No, he came straight onto the roster with his own unique style.
Did Jericho? Not a chance, and his style was honed from different styles of wrestling in Japan, Mexico, the US and Germany.
Also, in the Attitude era you had guys with the power game (Big Show, Kane), the technical style of Kurt Angle and Chris Benoit, the more kick based style of guys like X-Pac, Jericho with his mixture of styles, the more basic WWE style of The Rock, Triple H and the brawling of Stone Cold and Mankind, plus the hardcore style wrestlers and the high-flying Hardy Boyz.
So, it was not all punch kick, and wrestlers were given more freedom to do their own thing, rather than coming through from the developmental leagues having been trained in the WWE way and ONLY the WWE way. It made for a more varied and entertaining show in my opinion. Obviously you have your own opinion