Your prior post, which I quoted in full, did not in any way reference "ML experience," but instead said, "I can see them loading up on AA and AAA veteran catchers..." Given that, I'm not quite sure what "point" your reply to my post (quoted above) was trying to make.
I agree that only Logan Moore, of all the catchers in the Phils' system (excluding Fryer) is what I would call a "minor league veteran" - e.g., a lifer who isn't a prospect, who's been kept around because of his defense and his value to helping pitching prospects develop. The rest of 'em are either prospects, or "organizational filler" who will let go when their roster spots are needed for prospects (some of them will not survive to play in 2018, I expect - there are too many of them, between the kids on rosters now and the recent international signees).
But "loading up on AA and AAA veteran catchers"? No. Maybe ONE such guy, along with Fryer, to go to Reading - but even that only if they cut ties with Brodzinski (who's on the AA roster now), and presumably also with at least one of the current high-A catchers (Bossart and Cabral).