Football is one game that the rules are seasonally changed to further improve the quality of the game so I'm not surprised that UEFA opted to have a new format in the UEFA Champions League and Europa League competitions but if you ask me, I think this particular change wasn't needed. Personally, I feel the old format that was last used last season was better and less complicating to understand how it works unlike the current one but the good thing about the new format that'll be used for the first time by next season is it allows more teams to have the chance of participating in the two European competitions and k think it's a good one for European football.
Here I agree about this, old format were doing impressive work and most of the fans and related peoples were happy with this as well, but now UEFA is looking for changes, and they are already announces about this with Champions League is going to be play on new format and UEFA Europa Cup is also having changes now we can give better argument about this after having end of the first season because right now things are not going as we can talk about this.
But now we need to understand with new system we will have more teams and better things because with this their revenue system will be also increased, and they will be able to have strong because these changes are just because of having increased competitiveness and improvement in finances so now we have to wait for the start of the season and how these things will work.
I think, when there are new rules that change old rules it might also have a good purpose too, even though we don't understand it well yet because of course it takes time to understand or adjust. Because after all, if we understand it then of course we will also be able to adjust to the new rules that will be implemented next season. Thus, even though it is still difficult for us to abandon the old rules, because they have had good adjustments over a long time before.
Thus, I think it will not be a problem when new rules are implemented. After all, if for example there are many teams who don't agree, there will most likely be protests or something like wanting to use the old rules. But yes, because so far it still looks fine, it can be assumed that they also accept the new rules well.