[timr]

That's interesting, thanks. But as you note, an in vitro study is still a long way from proof of claim -- just because something can happen does not mean that it does happen in actual people, and it certainly doesn't mean that it happens often. I would characterize this as evidence suggestive of a plausible mechanism.

One thing missing, for example, is why this doesn't appear to happen frequently. Most of the highly touted claims of cardiac involvement from summer 2020 have been debunked (e.g. in athletes).