Looking at Bluevine? Compare the whole picture
Bluevine has built a strong reputation as a direct provider for US small businesses, particularly around its business line of credit and business banking. If that's exactly what you need, applying to them directly is a perfectly sensible route.
The thing to remember is that any single provider can only offer its own products, on its own terms. That's not a criticism - it's just how a direct lender works. Comparing that one offer against a few others is how you find out whether it's genuinely the best fit for your situation, or simply the first one you looked at.