Tiger was there to create a s*xual tension between Kabir and him which then became the USP of the movie.
This teaser doesn't show something which would make War 2 a 'special' action movie.
Pathaan wasn't like just another action movie to me because of the focus on SRK's work and thinking (a plethora of 'Easter eggs'), a certain tension of feelings between Jim and Pathaan (they would have been friends in another scenario), the quite mother-son relation between Dr. Nandini (Dimple) and Pathaan, the absence of true romance between Rubina and Pathaan...and, well, of course, the humerous Salman Cameo. To me, the leading pair had been Jim and Pathaan and their own stories.
Maybe, War 2 also gets an interesting personal stroy for Hrithik and NTR jr and their fight for death... the teaser just focusses on fighting action.
Btw, Pathaan also had a balance between CGI and natural locations.
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