IMHO with the growing trend of music streaming sites becoming available artists are having to resort to more “imaginative ” means of getting new material across to the public in general,fans will always buy new material,look at all the expanded reissues available. A few years ago Radiohead released In Rainbows on a “pay what you think it’s worth basis”,funnily enough their only album not on Spotify, it’s a gamble that will eventually buy it,or an over inflated ticket to see the show giving them opportunity to play new music to their fans.
As for U2 themselves,they’re a marmite band,even in Ireland – not everyone likes them – get over it and move on, we can’t all be there same otherwise it’ll be a pretty boring life. 😕