I was surprised too
Reasoning that my employers never sent in any evaluations for me and thats what she uses for letters (I go to Northeastern, so co-op is part of the curriculum..
but even without the evals, she's worked with me on finding jobs, knows my resume and academics. Whatever I'm over it.)
But yes, that's what I'm currently doing. Like you said, they should at least be able acknowledge that I did well in the class, even without knowing me personally. Again, fingers crossed...
I have a strong GPA, so I'm hoping that the professor recommendations are more of a checklist/confirmation and not a deal breaker if they are average. Obviously good ones help no matter what, but I mean that as long as they're not negative letters, I'll be fine? At least that's what I'm telling myself.