I don't mind this deal actually. Especially if the salary is included. 7mil with 2,5mil possible bonuses for 1 season is roughly one season's salary of Chiesa.
Lets say we get Sancho on a free loan, but have to cover his salary and have an option for 40mil at the end of the season. I'm sure it would be viewed favorably by most (from financial point anyway). But that would cost us ~13mil in Sancho's salary for 1 season. If he flops and we don't use the option, the free loan would still end up costing more.
Sure. It would be nice to have an exclusive option for Conceicao. But at this stage in the transfer market it's not a worst solution. How we got ourselves into this position is another discussion.