Actually, I don't think they have many problems and what they are doing is shaving costs by keeping staff numbers at their service center small --that is why service is slow and at times unavailable. The internet tends to exaggerate problem/issues. I have bought 2 Starks (MX) over the last 2 years, and had no problems outside of the shitty tubes. And people who don't have problems don't post at the rate that those who do as expected.
Having a large call center to handle consumer problems/warranty work is incredibly expensive (for example with overtime during holidays) and honestly mostly impossible and almost every company or manufacturer in any industry that has ever tried it has failed. That is why there are dealerships and actually why retail even exists. The Japanese proved this in 70s.
Stark did it mail order because they had to, since many dealers/retailers were unwilling to invest in Stark initially and only came around once the bikes were selling and a proven commodity. Stark sold a lot of bikes and continues to do so and now there is a network of dealers. Of course, in the motorcycle industry dealers are no panacea as I am sure you know.
The general hope is longer term the E will be much more reliable/lower maintenance than ICE and remotely de-buggable, so there will be a decreased need for service, but my thinking is that with complex machinery (and even software and firmware) there will always be a need for retail/field techs/local service and trying to do this online on a shoestring budget is a prescription for angry customers.
I hope you get your stuff soon and get back riding.
And BTW some genius thought it would be good idea to run address verification through AI and that hunk of shit software mangled addresses that weren't conventional i.e. shit learned from the internet...check your Stark invoice.