Ok, I did not know that; I thought they were replacing bombers with bombers, but they are not really bombers, they are multi-role...
Anyway the question still remains, why would they have wanted bombers in the first place?
Replacing Russian bombers with Paki/Chinese fighters is an odd switch. Like setting out to buy a five ton truck and coming home with a Honda Civic or something....
I read up a bit on them. They sound OK, but not world beaters by any means. They are described as a "low cost alternatives to more expensive western fighters" ...whatever that actually means.