A low buy back clause is not necessarily a good thing.
Consider Marcos Lopes, who had a buy back of 15m after we sold him for 9m. Monaco just loaned him out for 2 years until our clause ran out and now he's going to be a starter for them, and who would really be surprised if he's being talked about as a 30, 40m+ player by the end of the season?
Fucking Leicester over with a piss taking buyout clause might make it look better in the transfer papers tomorrow, but it's not necessarily going to be the best thing for the ultimate goal which is Iheanacho becoming a striker worth much more than £50m. We want them to invest as much as possible into him, build the team around him, shove a £30m player in Slimani to the bench for him etc. The deal needs to benefit everyone and be more than a glorified loan.