…it should be noted here that the Safari team is easily the least dysfunctional and most productive software team in Apple’s entire organisation.
Just look at the last four or so iOS and macOS releases, at the various app teams, and contrast those train wrecks with the progress made by Safari during the same period. They’ve been delivering user-facing features and standards-implementations. Maybe not as fast as Chrome but at a steady clip, nonetheless.
Taken in context with Apple’s overall poor software quality, the Safari team looks more like a well-supported flagship team than a team underfunded to the point of sabotage.