Earlier quoted context omitted.
This seems like a bit of a trend with Safari. Around big releases Apple will announce how Safari is the best at X, but other times of the year it gets a lot of flack. I assume this is due to Safari’s more traditional release schedule vs other browsers continuously shipping feature updates.
Cool stuff they're working on tends to take a very long time to reach customers' hands compared to other browsers. Just compare the "stable" and "experimental" graphs on wpt.fyi for Safari. I can't think of a single good reason why they don't adopt an "evergreen" 4/6-week update model except Not Invented Here syndrome or "it's not Apple-like, we prefer the OS team (and therefore Marketing) dictating our release sched…
I recognise that this is a controversial take, but in my opinion what Google is doing is a variant of “embrace and extend”. Traditionally, this meant proprietary extensions (e.g. VBScript) but I think this a subtle variant with similar consequences.