Imo In some cases they might have.
Depends how you look at it, depends on curriculum, how long you have been studying English and such. Native speakers might not pay that much attention to grammar compared to foreigners but it differs.
Even I do grammar mistakes time to time even after studying...
How do you know they have stopped updating? Was there update about it, I think it was last time updated in january, but I've been playing it since 2018.