I agree, they aren't going (as they explained themselves) to these promo concerts because of the concerts they arranged and got already paid already before their victory. But, don't get me wrong, there are many different ways of promoting your song. But they are not doing much of promotion here at home either. I don't know, they seem passive.
I got used to it already. I only hope that they will get better clothes and that's it. I really hate those baggy pants and sweaters.
I was just talking about pre-parties of course It would be in their best interest for their career to do some promotion at national level, and why not a bit of social media promotion to win the loyalty of their newly gained fans abroad: it doesn't cost much, they seem to be into Instagram and one has to take care of their 12k new followers