Sort of. They had to put it on the patreon owner, or the patrons themselves. I think from a business perspective, the risk of the patrons quitting the platform is greatest because then you lose everything --they figured (perhaps wrongly?) that the risk of patrons quitting would be greater if they suddenly said
Hey now you, the patreon owner, get 30% less money!
versus
Hey, now all your patreons have to pay a bit more
It’s kind of a no-win situation, IMO, but the real enemy is the current banking system and its fees for small transactions.