It's not the "Lionscale Facility." It's simply Lionel's in-house manufacturing facility. And to my understanding, the injection molding of cars is done by an outside contractor. The decoration and assembly are all done in-house at Lionel.
And if you look through any recent catalog, while there are no Lionscale items cataloged, there are lots and lots of specialty traditional sized trains are labeled as made in USA. So Lionel's in-house facility - regardless of any slowdowns caused by Covid - appear to be very busy, just not making Lionscale rolling stock.
In recent catalogs, the LionScale cars appear to be at least momentarily replaced by the Vietnamese made Standard 0 line of rolling stock, which are in the same ballpark price as the initial list price of the LionScale cars, but undoubtedly make much more profit for Lionel. being made in Vietnam.