This was controversial in the '90s when some cafe owners and patrons would argue whether a cafe or communal space should turn into what some referred to as a Zombieland...people stuck to their computers. Some would have a no laptop policy and others would turn the wifi off after a certain hour or some days. Pretty well estabished that turnover of clients is usually required to run a business and that somebody with a laptop there for hours might eat/drink much less, compared to 3-5 patrons over same time.

Even now there are companies trying to block time out for people with dedicated space/power outlet if you sign up for a meal/coffee service plan. Some cafes/etc in Paris will kick you out for even taking out a laptop and jam area wifis and block sockets.

Looks like owner is trying to accomodate both.