I like the playoff format as I really think it builds rivalries but I can see how fans find it frustrating when it works against your particular team
I'd like it more if the wildcards stuck to the divisions when possible. ie, the only time the Atlantic winner plays a metro team is when both wildcards are metro teams and they always player the lower of those or the only time a Metro winner plays an Atlantic team is when the two wildcard's are both Atlantic teams.
Basically turn it into a true division setup where 4 teams from each division make it with the exception that if the 5th place team from one division is better than the 4th place team from another, they make it ahead of them and are transferred into that division.
TBH, at that point, I'd even reseed for the former conference finals. Have 2 rounds of division playoffs to result in 4 teams which get reseeded for the cup semis theoretically allowing for 2 East or 2 West teams to make it into the cup finals in the same year. Once you're down to 4 years, the scheduling and cross country trips aren't near as big a deal.