There's a pretty simply reason why India are donating cheap wickets to Ali.
It's their technically deficiencies.
If you look at Kohli, Rahane, Vijay, Dhawan and Pujara. They hardly very try to play Ali off tht backfoot.
They are prompted semi forward all the time. Therefore when Ali bowls a pie, they can't take advantage of it.
Just look at the way R Ashwin played Ali in Manchester. Fully forward or fully back. Never caught in on the crease.
These young Indians need to go watch videos of Dravid, Tendulkar and Laxman playing spin. If you play most of the deliveries of the backfoot, there's more bounce in England than India, Ali will have to pitch it up further. That's when you can attack him on the front foot.
If they want a master class from current players, look no further than Clarke, Amla or de Villiers. Very rarely will they be caught on the crease. And they use their feet even in defence up force the bowler to change his length.
It's a legacy of too much T20/ODI cricket and a lack of FC cricket to round of their games.
But cash is king these days...