mgarbowski , you are certainly not alone in thinking that less lopsided leagues will be more interesting to fans. The EPL is the least topheavy and the most popular. I think it is possible to have too much parity - MLS demonstrates that. A league needs superstar teams, but it also needs all the other teams to have a fighting chance at the title, and that doesn't now exist in Europe - aside from the EPL once in a blue moon.
It will be interesting to see if/how this rolls out. The ESL isn't scheduled to launch for another 17 months. If the defecting clubs are kicked out of their domestic leagues, they won't have real competition for a long while. Presumably, they'd invent something to fill the gap, but will that bring the same revenue? Could the clubs pay their players? Do they loan them out? If you are Pulisic, do you take a year off of real competition to play in the ESL? or do you force a move to a team actually playing games? Will Bayern, Dortmund and PSG suddenly have their pick of players?