No. Dr Levin is indeed a renowned Mozart scholar, and a performer of note for a range of repertoire, including Bach. His views on performance practices of the Baroque should be accorded respect, but they are not ironclad laws, and don't necessarily establish what was the practice of the time. Czerny is, after all, somewhat removed in time.
Also, what may be appropriate for a chord is not necessarily the same as what is appropriate for two notes in separate voices. Temporal displacement may still be appropriate, but it should be controlled, controllable and a matter of choice.
I'm not arguing that rolling chords is out of place, but your "roll everything" approach is too simplistic.
I have never told, suggested or inferred, and I challenge anyone to quote a written post, on any website to the contrary, where I have said that a pianist should roll all of their chords. NEVER!!
Further, you know this, but your goal is to apostatize the bogus Urtext (Robert Winter, UCLA) propaganda of "meticulous attention to the score." Conversely, my stated purpose is to have the hundreds of millions of pianists on this globe exposed to the ORIGINAL performance practice as it was intended by the composers who wrote the music!
Additionally, this, as accurately described by Neal Peres Da Costa in his book "Off The Record," includes the breaking of the hands, altered rhythms, improvisation, and the modification of tempos. That is they way they played whether you like it or not!
Specific to the OP on this thread, I have failed to mention that I cannot play rapid tempo Bach on a modern Hammerklavier. And, my guess is neither would the composer have been able to. The resistance on the actions of the claviers, harpsichords, organs, and the other keyboard instruments that Bach played, aren't even remotely in the same universe as a modern piano.