At every price point, a case is a case is a case. Some are excellent, some are good and yet others are essentially slapped together crap piles...
Whatever part of the market a mfgr chooses to operate in, they and only they must decide how to manage their products to ensure they make money and also serve their customers as needed.
IIRC, CASELABS chose the upper range of the market. So most of this failure is on them and their mgmt team, as it does with any other company that goes under.
Without knowing the details of that "major account" or whatever, there is no way we can know how much that played into the failure. But blaming the tariffs seems like a cop-out, since most of them are either just now going into effect, or will in the coming months....