Each to their own, I think it's very well produced and doesn't sound dated at all tbh ... I think following the beat of "today" is not necessary the best option since trends are shifting, this sounds more universal as far as "beat-department" goes and would work 5 years ago, current and 5 years from now aswell... as for what you describe as "anti-climactic" is another thing that I actually like with this song, that it's not over-the-top pompous (like some ESC entries tend to be) but rather a grower with a nice subtle production instead... I'm pretty sure alot would say that Belgium 2017 was "anti-climactic" aswell (I'm not saying they are similar type of tracks, but they have this thing in common that they aren't trying to be over-the-top).
Poland's main problem is that no one with a decent career and track wants to enter Polish selection (Donatan/Cleo was an exception from the rule).
If Doda would have entered "Riotka" back in 2015 (as was rumored for a while) and Margaret would have won the national selection in 2016, and add "Andromeda" to 2018, then Poland would have had a pretty good run since the comeback in 2014... but seems like Donatan/Cleo will be the only good addition Poland had in ESC for the past 2 decades...