You have to look at this in conext.
Euro-pop is nowhere near as diverse and sophisticated as ours - as anyone who has enjoyed European radio and hotel caberet will testify. It's why the UK is a leading force in the world of pop music.
So pitched to a Eurovision jury, the song has to be simple, nice one-syllable words for easy memory for those for whom English is not their first language.
Europeans are not at all ageist with their pop stars, check out the millions of units still shifted by people like Johnny Halliday and Charles Aznavour, so Eng's age is not an issue either.
Add in a nice simply non-threatening melody which suits the blandness of Eurovision taste, and I think you have a real contender here.
Like I say, it's about context, and for Eurovision, this is a perfecly pitched entry, and our best hope for years.