I had read the same thing about the hail damage. Three of them had ferried to ABI; N802AE, N811AE, N814AE, and have been sitting there since then.
Would you happen to know if they flew to ABI before the hail or after?
I have a theory...
After I made my original post about the recent departures going to MZJ, and even before I learned that painted frames had left, this occurred to me: What if AA/MQ is simply rotating out good frames in order to bring them back eventually? At least some (all?) frames got new interiors and heavy checks in ABI, some just didn’t get painted. I didn’t understand why then (and still don’t, TBH, though it doesn’t matter,) but could they be sending planes to MZJ that can come back with a simple reactivation and no heavy checks required, in the current livery and with a decently new interior? As they continue to drawdown the fleet, they can send the birds with the freshest checks to the desert, and activate the remaining frames through ABI (with all of them eventually getting paint.) And while SJT isn’t the worst place to store aircraft, it’s not MZJ.
We know that there are markets that really need less than 65 seats, and some markets are more-or-less exclusive 140. Could AA/MQ simply be signaling that they are going to fly all 140s until they wear out, and this is just putting them in a position where all planes are fresh as of 2017-2020, and not having some that stopped in time several years ago?