Yes. The point is, it is a private company, and yes you can invest in SIPC because it is a public company. But aren't you wondering why price has not moved? You need a market for a public company to make money, and the market right now is being fulfilled by private breweries, most likely, in all 50 states.
That means that SIPC is not "unique" in the market where it would pre-empt other breweries on cornering the mkt, and as a result, you as a stockholder would make money!!!!
This beer is no different than any other private company making such beer and they will be saturating the mkt ahead of SIPC.