VTOL have much more mechanical parts, thus maintenance is tough nut to crack, F35C or F18 G and E variant are good for that role(especially for SEAD ops). The new conformal tanks boost its endurance for few more nautical miles too.
Good LO mission configurable and long endurance with new conformal fuel tanks.
And we can get F414 Enhanced engines with 18% more T/W ratio. We can negotiate to get help on our AMCA too, Engines will be usable on our AMCA, we can also get to learn to develop state-of-the-art production facility.
I personally believe that having two engines instead of one is good in some bad situations. I mean there are countless examples when an F18 went back to base with only one engine running. Also it's mission computers saves lives by helping pilots get out of Stall situations by auto-assisting the pilot. Happened to many US pilots.
In contrast to :
Although it's endurance can be increased with those drop tanks, but than you aren't towing more weapons right.