To address your Pro, we could just remove seedings from CL group draws. Having a few groups of death is way more fun. Plus you see some decent smaller sides playing meaningful and competitive group games, rather than get spanked out of sight in all 6 games.Pros
More big games between the best teams in the world, no more shite cl group games, no more waiting for the knock out games before the tournament gets remotely interesting
The promotion/relegation issue is the main problem. Just doesn’t seem fair that a founding club could finish bottom but be spared relegation, whereas a team who got promoted into the SL gets relegated just because they’re not a founding member.
Or.... if these teams really want to play each other more often, divide the 12 into 3 CL Groups every single year. Two qualify. Every single game would matter.
Both better solutions than nuking football.