Catcher development is really horsefeathers weird. If you look back on guys like Geo Soto, Welly Castillo, Willson Contreras, and even Miguel Amaya, all of those guys were kinda middling prospects who bounced around the minors without much hype until they unexpectedly broke out.
All this is to say, I've learned to take reports on Cubs catchers in the minors with a grain of salt, and I don't think it would be a good idea to give up on Amaya just yet.