Good eye. Looking into it further, it looks like this picture seems to suggest that they've forseen this issue and will also provide an attachment for a better "mouse mode" experience.
I, for one, can't wait until my joycon is so scuffed from vigorously rubbing it on a flat surface that it doesn't properly insert into the console. Maybe I'm assuming too much, but why would I give Nintendo the benefit of the doubt here?
Both such bangers!