The company has already stated that they're 95% caught up on April orders, and if they're having trouble filling May orders then it likely means another rush of demand.
I'm actually glad to see the company not overextending themselves with inventory simply to please our fast paced society which must have everything immediately at the press of a button. Instead, they're going about it the right way, and likely have another spike in demand which shouldn't come as a surprise to anyone.
The demand for their products is there, and the way they're going about filling the demand means they're likely to see increased profits from quarter to quarter. I'm sure as time passes they're figure out better ways to meet demand and communicate with customers. It's not like this company has been around for a while now, so patience should be expected.