Just look at what happened at the Ronda Rousey fight, she came back after her defeat with Holm, then got destroye again for the title fight. It was ridiculous and a shitshow. Indeed those fights make the UFC feel like WWE. But at least they give us the fights that people want to see. The HW boxing division has been a mess for the past few years, we didn't got the fights we wanted, and Klitschko brothers were too dominant anyway. It was not until we got other skilled fighters with a good reach that we started seeing better fights. They just had too much advantage due their height + skill.
Let us not compare Ronda Rousey against the Klitschko brothers,look at the age of Wladimir Klitschko he is 41 years of age and a lot of boxing under his belt and if this fight was five years back i am sure the result would be different.Getting punched in the face for this long is not a good thing and reflex will deter with age,Klitschko brothers dominated world boxing and they defeated everyone in their prime and let us see how Anthony Joshua will perform after 40 plus fights.