Not really. I think people don't understand that this is kind of chicken and egg problem.

You don't see overuse of linking words because it was generated by LLM. You see them, because every non-native spear is literally taught to link every paragraph with them. And all the texts, blog posts, wikipedia articles, stackoverflow responses and all the other stuff they wrote was then used as training data, from where LLM had learnt to do the same.

What I am saying is that there are just much more non-native English speakers and LLMs are inherently kind of non-native speakers too. So a sign that distincts majority (non-native) speakers from the minority (native speakers) is actually a bad sign (: