That may be but still, I know quite a lot of people who started out on older 600cc “race” bikes from the 80s and early 90s such as the Katana 600 and IF this really is simply a mechanically updated Katana 600 then I don’t see anything wrong with a beginner who’s willing to shell out money for fairing repairs/bodywork when (not if, but WHEN) they drop it to start out on it.
600cc sportbikes in the ’80s and early ’90s were MUCH more mild mannered than they are now, and while I do agree that a modern 600cc sportbike does not belong in the hands of a beginner, my opinion can differ when you start lumping 20 year old CBR600 Hurricanes, Katanas, and FZR600s in with modern GSXRs and CBR600RRs, and R6s. This is not an opinion that comes from personal experience, it is an opinion that comes from friends who have been riding a lot longer than I have who started out their riding careers on bikes like an ’89 Katana 600.