No, not really. None of my coworkers thought it was weird either. One of my coworkers was in China for 12 years and 5 years in Taiwan before that, and his Chinese wasn’t as good as mine. But he was one of the first to do deep neural network training on GPUs, so he had lots of face to compensate for any loss due to language skills.
Nobody will say it directly, but such people are rarely highly regarded. But no matter how you put it, living in any country for a decade without picking up the local language is embarrassing, if not a tad disrespectful.
