Questions about example sentences with, and the definition and usage of "Leanrners"

A: His English is great. I will say that his accent requires me to pay more attention than I would typically but there are many native English speakers whose accents require me to pay more attention as well so that's not an issue of fluency.

I personally think it's a bit stupid to expect him (or anyone) to have a (standard) native-like accent because he isn't a native speaker. What's important is understanding, not perfect imitation, and he speaks clearly. His grammar is spot-on, he uses the correct words and his intonation and the flow of his speech makes it easy to follow what he's saying. Worst comes to worst, he can just repeat himself slightly more slowly and I doubt anyone would struggle to understand him.