It exists but is severely limited. This isn't like reddit, this is the occasional source of important survival information as a reward for exploration. I think it's fine. Without WiFi, the MEG couldn't exist and we'd have to edit all of those pages.
Wifi should only exist on very few levels, namely 3 and 11. The lack of wifi on levels like 4 and the crimson forest helps nerf them into not being dominant and retains the eerie backrooms concept on levels that are meant to be be scary