I’m fairly certain those are legitimate- the 2008 set had an outer box like that and were kept in slim cases.
Yep. Those look like official releases. They came out a while later with slim cases and no inserts. Widely available in Canada. I actually work at a store that sells used DVDs and we’ve had these versions many times (and we do not sell bootlegs). I also own this set myself and it’s professionally pressed.