I think I am agreeing with Joshua when I say that I think most of us are on the same page that small "r" practical reason based on the evidence of the senses, anticipations, and feelings is a good thing to Epicurus, and he use it all the time.
The bad thing seems to be focused on propositional logic where the propositions are not tied to repeatable sensations, anticipations and feelings.
And that's related to why there can be "true reason" as opposed to "false reason." It's possible to do reason right and to do reason wrong. But the general term of "reason" as a reference to mental calculation in itself is not always a negatiove term at all.