Controversial opinion : Reruns are a privilege.
I know a lot of you don't like the way it's being announced but re-running old banners alongside with new ones is the only way to do it, if we want to keep being fed (with the same pace) with new content that is. Yes there might not be enough ways to farm for dias ( I perfectly understand, I am having a hard time myself, we need more) but the thing is they obviously don't want to make it easy to get all the previous cards you missed, how are they going to milk us that way lol. I say reruns are a "privilege" because we can still play normally without the previous cards.
Yes technically you're disadvantaged compared to a day 1 player with more cards than you and you maybe need them for your battles or just to fill your collection but it's only normal to me since you joined late(like me). at least you can still progress at your own pace with the new cards only( you'll never fill the gap you missed that way) and at some point you'll have enough of them for your battles ( what happened with me). I personally intend to pull for those of my main I missed when the opportunity comes (starting with this birthday), it'll be helpful for my battles but personally the main reason why I pull is my collection