In English conditions our chances against any SENA country in a one-off test (finals) are slim. So yeah, another choke might be on the cards. Not because we are weak but teams need some match practice to get used to the conditions. For SENA it's familiar conditions so it suits them more. The situation would be exactly the opposite if WTC finals are scheduled in the Subcontinent.
India could still win the final in a SENA country if Ishant could play along with Bumrah, Shami, Ashwin and Siraj, but that won't happen since Ishant got old and Ashwin is getting sidelined.
On the other hand, the Indian spinners would have a field day if the final took place at home thanks to the slower pitches as you mentioned.