I didn't expect a level 7 doctor to perform a miracle, but I expected a player who at that moment had 6-11 days of injury to recover in 6 days. It shouldn't be a miracle if you buy THE HIGHEST LEVEL OF DOCTOR. I didn't ask to recover in 4 days
Doctors are mostly useless, dude. You pay them a fortune and they give you almost nothing in return. Your reasoning makes total sense, but it's not how things work here. The higher the level of staff, the more exponentially expensive they are and the less exponentially they give you back. I don't think this is a huge problem in general, like in training, but in the specific case of injuries this just adds exponentially more outrage to what is already outrageous.