I drove through the area I'm thinking of a few weeks back. Maybe 40% of the businesses that were there before are gone, but much has happened in the past few years.

I know of 5 that definitely closed because of it, at least 8 more that were torn down (including a grocery store and a Walmart) to put up a field for a soccer team right on the line (which may or may not have been built without the light rail going in). 3 more that I can think of didn't make it to COVID, but they were probably struggling beforehand and might not have survived anyway.

YMMV.