Profitable or not, US or not, large or not, all companies can and will lay an egg.
If Mossberg can last out the original issues with the 464 it may turn into a great firearm. But just like they do with restaurants, customers usually only give a gun one shot and don't forget their initial experience.
Well, as I noted, producing lever gun 30-30 rifles isn't strange ground they haven't trod before and the ones they made in the 1980s obviously were duds and were discontinued and it probably wasn't Mossberg's choice.
If Mossberg is concerned and has customer satisfaction in mind, they've kept it a secret. As far as I can see, it's just another Mossberg scam.
They could take a lesson from Toyota who is replacing millions of defective gas pedals but, I don't see any evidence Mossberg's caring in the slightest.
Maybe a large court judgment would be what it would take.