I didn't know Luba did a post like that...awks.....
I don't think they would be jealous, maybe envious but not jealous I would imagine. It's an achievement that a female pro finally won in her first year.
To be honest I think the true win in itself is not that glitterball trophy but what you can make from your time on Strictly when your on the show. You can win as many seasons as you like but what happens when you leave is the real test. If you've won a lot of series and walk into nothing or have nothing planned afterwards then what does it matter you won some trophy?? It wont be paying your bills.
Its best to start making plans when you are on the show such as brand deals, appearing on tv, events, getting your social media following up as much as possible etc.
Some pro's who have won the show you never hear from again and some who haven't are making successes in their own right.