I'm not sure what you are referring to about ontologically bad. Has someone said this?
I'm going by the vibe of the comments of people here who are generally anti-MIT. That the very nature of allowing someone to use your code in a closed-source project without attribution is bad. Phrasing it as "hiding their copyright infringement", for example, implies that it is copyright infringement per se regardless of the license or the spirit in which it was released.