Ok to me this makes no sense. Why would you get it as a Runner? First off you have to be casting a spell in order for a mundane person to know your casting a spell even as a mage you can't tell what magic someone has only that they might have magic which isn't illegal in itself. Casting spells that would need a license: Healing, Entertainment, ect,. ect probably only need a license for "taxing" purposes. Once you cross over to manipulation and lethal/non-lethal attacks your entering into the forbidden zone, I'm sure most summoning is looked upon as forbidden due to not knowing what an individual might use it for. Your committing crimes, there is no license to commit a crime. So whats the point, why are you entertaining people and healing random strangers? Your a shadowrunner not a walking show.
So whats the point, like to me it shouldn't even be recommended in the book. I think it's a waste of money for any player to get. Weapons it makes sense to get a Fake License you can't exactly hide them 100% all the time, your going to get caught walking around with that Restricted Item, then bam you pull out your License. Spellcasting your in the middle of toasting someone I don't see LoneStar calmly walking up and asking "Hey do you have a license to fry this guy into charcoal?"
The only possibility I can think of for having one is if you literally entertain people or heal people as part of your cover identity, the first one is crazy as a cover the second is almost as crazy. You should try to stay out of the spot light as much as possible.
So whats the logic behind even having it shown in the book?