Slow news day?
Although SWA is not utterly implausible.
The buses are actually a plus... an opportunity to try out a smallish sample on a live certificate for a while before they determine THEIR fleet plan. If they decide to revert to single-type, it's easy, simply phase them out on schedule. Lot easier than building your own fleet from scratch just for a test run. They can pivot either way.
For those not following, the max crisis had SWA actually reconsidering their single-fleet strategy. COVID aside, if the max grounding had occurred 5-7 years down the line it would have put SW into BK and possibly liquidation, too much of their fleet would have been max and therefore INOP (AS of course would be in the same boat in that scenario).