@God Father Not the mistakes. I wouldn't defend Race 3 or Dabangg 3 final product. Can only talk about what could have been.
Milap isn't the talk of discussion here. And when you are talking about box office numbers, the subjective matter i.e. good content v bad content, takes a back seat. A 100cr film doesn't mean it's a good film right.
Bharat wasn't a bad movie. Signing it was never a bad decision. Just that casting Salman means you also have to cater to the megastardom. Although it wasn't a blunder like Tubelight, stripping Salman off his image entirely. Between Race 3, Bharat & Dabangg 3, good atleast he signed Bharat. Dabangg 3 was again a vanity project, the character any day deserved better. But saying Dabangg 3 itself is a mistake is exaggerating, it's his most successful/loved character, deserved another film. They just couldn't provide a better one.
Coming to YRF... Nobody thinks that. They're the bosses and actors are the employee they hire. The Khans and Roshans have outgrown this and are on a commanding position for 2 decades now. These production houses have milked them for the core and so don't see the necessity in continuing the same. They want actors whom they have control over not the other way around. Production houses make/break stars. Period.
Let SLB score big without Ranveer now. He found his muse in him & Deepika so 3 back to back films earned big - Ram Leela, Bajirao Mastani & Padmaavat. He won't be the same with the Alia Bhatt film and he is also coming with it to prove it to Salman Khan as well as the industry that he can deliver big.
Simmba can be applauded for Ajay's entry in the climax and Akshay during end credits. But you had to sit through an entire film watching Ranveer as Simmba. The driving force - one original south scripts, two - Rohit Shetty... these two get equal credit too. Ajay's Singham gave the boost but doesn't mean Ranveer doesn't get any credit at all. This was his first massy blockbuster. The one Ranbir is yet to achieve.
Farhad's strong zone is comedy. The 3-4 action set pieces to be inserted to make it an action-comedy wouldn't be much of a trouble for him. Not a newbie right. And he is extremely old school.