I see, I'm unsure how loose this is, there is only a mention of hand billing in the actual article. It also says that this form of protest is only acceptable if it doesn't "disrupt business" or physically interfere with shoppers, that sounds vague to me, especially the "disrupt business" requirement.
The ruling in Fashion Valley arguably affects only boycott campaigns and peaceful handbilling in public forums such as shopping centres. Moreover, the Fashion Valley holding also arguably leaves in place lower-court holdings in California that have held that stand-alone business entities, such as grocery stores, do not have to permit on their premises the boycott activities that have been found to be valid in a large shopping mall, or public forums such as the Fashion Valley Mall.
However, even "public forum" private property owners, it would appear, can still prohibit certain activities that physically interfere with the conduct of business on their private property, including disruptive fundraising activities. Further, such property owners can adopt regulations that reasonably control the time(s) of such activities, the place where the activities take place, and the manner in which such activities are carried out. A reasonable deposit or bond could perhaps also be required of the outside group. Such regulations should not regulate the "content" or "viewpoint" of the speech or writing (e.g., handbill) absent a "compelling interest" that is narrowly drawn to meet that end
it feels exceptionally open to interpretation, and seems it may only really apply to leaflets! On top of that, if the article itself is correct that this may only apply to boycotting. Even this then only applies to shopping malls but not singular private entities (like a Walmart), it seems to only apply to a conglomerate of private entities (such as a shopping mall) as pointed out by the article itself. How much does that apply to hate speech on twitter.com and their terms of service? Is someone really boycotting when someone says Jews are evil and control the world? There is still too much ambiguity for me to be certain of anything.