Interaction with language models involves a significant use of language and thought. Is not repetitive. And many users (myself included) continually find new ways to use them.
Others may take their time adopting language models, or be slower to branch out into many kinds of use, but young people in particular will be very fast adopters and adapters. That will be the place to watch.
"Even faster" with respect to inference learning, wasn't an attempt to undersell changes happening now. Teachers are experiencing a lot of new issues with how students respond to the availability of models today. One being the potential for students to put less effort into their own communications. If that continues, it won't just be a "dumbing" of literacy, it will have its own impact on vocabulary and grammar.
But looking forward is unavoidable. Models are not going to stay still long enough to say what stage impacted what changes. Model changes are too fast and fluid.
Well, this era is just getting started, so a diversity of expectations makes sense.