I’m not sure about the score but I would guess from the 11% number that it’s a checklist of nine things and it didn’t have eight of them. The one thing is bike racks, I’d guess.

Some otherwise perfectly nice places are just terrible for bicycling. Square curbs and no shoulders and no bike lanes. Sidewalks are OK if there’s no pedestrians using them, but you’re not really supposed to be there on a bicycle. And they often just end when you get to the edge of a property. One of the reasons that I didn’t move out to Alabama with the rest of my company is that the destination city has “bike routes“ that consist of a bent vandalized sign post at the start and nothing more.

by contrast here in California’s elbow, we have bike lanes on nearly every street that is big enough to get paint. The ones that don’t usually haven’t been remodeled in a long time or it’s too narrow to add the width. Stoplight sometimes have induction coils just for bikes. There are bike trails through the city parks that go along the two creeks in my city. The road parallel to the railroad track along the American river is one of the oldest paved roads in the area and it was first paved at least in part by a local bicycle club over 100 years ago. You can ride from Granite Bay to Davis almost without ever going on the street.

to be fair, not every city has the money or the enthusiasm for this stuff. You can imagine how this would go over in Alabama.

You will find a similar dichotomy in how well they adhere to standards for things like rail crossings and handicap parking spaces.