Just a general point first - Because women get sexually harassed doesn't make it ok, or worse, funny when men get it in return. That's one of those ideas that really offends me as a woman and I never quite understand why so many women would try and use it as an argument when it just makes us look like hypocrites. It's that thinking that makes some people believe it's ok to grab David Beckham's crotch at an event. Just treat each other like you'd want (or better yet, how you'd want your mum or daughter) to be treated.
Back to the topic - I find it very uncomfortable to watch, perhaps moreso because Gleb is so new and hasn't really had time to bed in and be known to us or to the hosts so we can't know if the joke is with him or on him. Whereas the Aljaz joke was funny and playful, the overt sexual innuendo with the Gleb version of the jokes are pretty uncomfortable to watch, especially as it is so clearly scripted.
I think the worst dancer objectification before this one I can remember, and one that I still remember now is one that Len (I think it was Len) said to Ola about her being a Pole dancer from Poland after she did her dance around her exceptionally lumbering partner at the time. I know it was just a play on words but at the time I was pretty dumbfounded and, iirc, it didn't go down particularly well at the time either.