The lottery changed a lot in recent years. Finishing last used to give you over 48% odds to get first overall. Now its 18.5%. What used to be a coin flip now means odds are you can finish last five years in a row and only get 1 first overall pick.
With those odds the benefit of tanking is greatly diminished. Might as well go for it.
Its sports... the point is to try and win.
It's not a matter of being happy with failure. Its objective analysis of recent past. I wanted MB fired. I think I started a fire mb thread early in his tenure. In the last 2 years, he has improved greatly, and I feel that if he continues, they will be strong for years to come.