Earnest:
Archaeomagnetic data says nothing about the date in itself, but can be used for establishing whether destruction events happened at the same time.
Incorrect. The study applied the use of archaeomagnetic intensity data and other data to correlate the timing of burn sites, and that method does not establish the date itself. But the archaeomagnetic intensity data itself - represented by the shaded curving band in the graph - does invalidate 993 as a valid date for the destruction of Beth-Shean. Of course, I don’t need to rely on that fact though, because all the other evidence already establishes that the Watch Tower Society chronology is wrong.