It certainly is - considering we’d fire that much every week underway. 1000 rounds in a year of testing doesn’t speak well of the test program.
The gun isn’t ‘new’ - it’s the 20mm GE Vulcan design that’s been around for decades. That part doesn’t really need to be tested especially since this company’s been making them for years. What is new is the system they’ve already been making for a while is now in a palletized form, that’s pretty much it.