Oh, sure, maybe trivial isn't the best word for it, but it's all relative (to me). $20k is remarkably cheap for a practical cryptographic attack compared to the rest of the field, and there's plenty of software to do it, and it's been done before (many times).

Apparently there's even a SaaS offering to do it for you in some cases (for staggeringly cheap, like $300), but I had no idea that existed when I wrote my comment.