I used to use Strava on my phone for my work rides. One time I forgot to turn it off, hopped in my car after coming home to do an errand. A couple miles down the road I realized that Strava was dutifully recording my driving as riding (in light traffic definitely faster than almost anyone would ride, especially me). Whoops.

As the article points out they have trouble keeping cheaters out of bike races in the real world, they're going to have issues when everyone is at home in charge of their own equipment. I don't know why its seems like it a bike sport thing, maybe its the "bring your own equipment" aspect of it.