Whilst Wales deserve their ranking now I think part of the reason for not saying they are world beaters is due to how Wales acted in the early 2010s. I remember seeing player rankings that put Wales only 1 point behind the all Black's, saying Wales were world beaters despite repeatedly losing to SH sides, saying no English players would get into the Welsh side, that the lions tour of Australia was a Wales win and the other countries contributions didn't really matter. That sort of stuff grates and stank of Welsh fans thinking they were better than they were. Now Wales get to a high ranking again and those same comments are beginning to pop up, especially as they coincide with an English downturn. That probably plays a part in why people don't give Wales so much credit, we've been here before not that long ago.