Nobody is conflating anything, you're just misinterpreting the same words with different meanings.
A professional criticism can, in fact, be unprofessional, and even a personal attack. These are not mutually exclusive.
> Those are not personal criticisms
You're using "personal" to mean "regarding non-professional matters", whereas others are using "personal" to mean "regarding the individual person themselves".
> those are all professional criticisms
You're using "professional" to mean "regarding the profession" whereas others are using to mean... you know, the opposite of "unprofessional".