I've come to terms with that it was the right decision, not because "the songs would be too old", this argument isn't very valid imo, outside of the ESC bubble most of these entries are still unknown to the masses and would even remain so in a year from now. Also, if a song is good, eventhough we live in fast-moving times, it should still be good a year from now, sure if someone listens to it a lot it can get tired, and it might be out of trend, but in the end of the day good songs never die and if it wouldn't survive a year, maybe it wasn't the right choice in the first place. I mean it should be optional after all, if broadcasters would opt-out then it would be their prerogative, the same if they would go with the same entries, that's a risk/chance they would have to take so in that sense, I think it should be optional and now the EBU simply takes away that option. On the other hand it would be good, after the crazy 2020, to just start on a clean slate.
We have to understand that even with the crazy circumstances, ESC 2020 was not actually postponed, it was cancelled, so yeah probably Rotterdam will host in next year an probably the same team will be responsible, however the September 1st rule remains if it is actually a "new" ESC.
I see some songwriters/producers get upset, and sure I understand it's their products and while alot of people say that acts should get a second shot, I think being a song contest the people behind the songs are even more important since they are the reason these songs exist in the first place, however some reactions also shed a light on the whole issue with modern-day ESC with the whole "shop for songs" going on, the loudest critic so far has been this Bulgarian songwriter who had like what, 3 entries this year? And while the current rules allow that, I think it takes away the authenticity, but that's a different topic though, so what he basically wants is that three or so different national broadcasters should stick with his entries, even if he has zero connection to those countries. Sure, they bought his entries, but still... but again, it's a different topic.