I'm unable to open the link due to being blocked, but do they have the data to prove sales went down?

Every study I've seen shows shops always sell more when they have more foot traffic from pedestrianization and protected bike lanes. Businesses tend to complain initially, but when the cash starts flowing in, they never want it removed afterwards

There can be other forms of parking, but on-street parking on a street like that is by far the worst type.

In my city's downtown area, we have four lanes going one way, with parking taking up two.

We also have a few unused, large parking buildings and many empty parking lots within walking distance of every shop, restaurant, and service building.

As it stands today, my downtown is hostile to pedestrians, cyclists, and the disabled. Businesses would thrive if the area was designed for people.

Constriction hurts businesses, for sure. Road maintenance tends to be a huge reason for that, and frequent road maintenance is needed when areas only supports cars.