They wanted a more democratic Church with the laity having power over the clergy. For the Ultramontanists (and many believing Catholics who are not Ultras), this is a big no-no.
And the people have voted with their wallets. Guess the people don’t like the $H|+ sandwiches these folks have been trying to sell.
See the Yellow Pages under "Presbyterian" and "Baptist". There are plenty of churches organized like that for people who want that it; they don't need to fool with ours. The PCUSA is even liberal enough for the VOTF people.