It was a tactical save for the show! I don't think Tim had ever a thing for Margerita - it was pretty obvious that he is a big fan of Brandon and Kenya throughout the whole show and I even feel like he likes Kentaro more than drama queen Margarita.
Also the secret winner of this season is in my eyes model MEISHA - week after week the designer who got her won - so often that I don't even remember the last winner look that she didn't walk down the runway - so there u see how much of a difference a good model can make - it can be everything... to be honest I think that's why Kentaro was so weak this week, his asthetics dont work with plus size models (same goes for Brandon imo) - Liris is a super strong model, u dont forget her outfit, she made some looks stand out this season but Jasmin was in the bottom quite regularly, more than not designers got eliminated when they had her - I think that is not fair for the designers who have weaker models, they should have all equal chances to show off their best work. so models in different sizes: yes! but only if every designer works on same size and they have equal chances every week.