The present times have had to have an effect on the ability to go about daily business as usual. I'm sure that the efforts taken to produce a product here in the USA have been hampered by the present health/safety issues throughout the world. To do a startup production and expand production to produce our units here in the USA has had to be met with some major challenges. These present times are just not conducive to such an undertaking, IMHO.
That's not to say that it isn't going on, I'm just thinking that they may have been bogged down by the present state of affairs.