So they looked at the parts of a 2005-era Radio Shack and decided to pick the least interesting merchandise, the stuff most likely to be sold in 25 other places within a 10km radius, and the stuff that has the tightest competition from Amazon/Ebay/AliExpress.
I can see a valuable niche for Radio Shack by being a "branded place" for electronics components. The hobby-hardware/maker/right-to-repair trends are obvious, but most people don't have a good place to satisfy those demands locally. If you realize there's a blown capacitor in your widget, even if you'd spend $5 to have it today, you probably don't know where to buy it. There are a few specialist dealers in my town, but they tend to be weird B2B-centric shops hidden in industrial parks with non-hobbyist-friendly operating hours. Put a Radio Shack in a nearby strip mall, and it can compete with ordering off Amazon or Mouser.
The other model I could see is being to Best Buy what Dollar General is to Walmart: a smaller, even lesser store that provides an in-person shopping offering in cities to small to support the market leader. Sell one model of laptop, one range of speakers, etc.