The problem with gas stoves isn't the stove itself, but rather the foot in the door with adding a gas supply, which results in gas being used for other purposes on the same premises.

Climate town has a great video about it: https://youtu.be/hX2aZUav-54

Tbh though I'm not sure it has the same effect for businesses and seems a bit over zealous to me to ban it from restaurants for that reason; but the other reason to ban it from commercial premises would be to reduce fire risk. I used to work in a mall and the number of times the noodle place set off the alarm was quite annoying and probably even more annoying and a waste of time for the fire department 🚒🧑‍🚒