I didn't see any statement about normalizing the share click as bot or human.

With the continual passage of laws restricting social media for minors, URL copy and paste will become the standard methods for sharing.

Personally, I would never click the share button because sharing with a person or group of people is often through email, SMS, work chat, or here.

Businesses that use Facebook to communicate events are actively restricting their consumer base because not everyone wants to use it or will. A standard web-site is the only method to communicate openly with users.