Does their story matter if they purposefully block the city traffic? Sure, it may matter on its own, but if they break the law and make life harder for others, that behaviour cannot be excused. They may have learned for the test, but in the time of satnavs that already have all the streets, digital broadcasts of current roadworks / street closures / accidents, and waze/google like collection of real-time data about traffic, that knowledge is simply not required.

Someone else is not keeping their service in line with the regulations and it costs them business? Sue them. Doesn't work? Well, the same rules don't apply to you apparently, so your life just got a bit easier.

I'm in favour of some regulation of the transport services. But as soon as companies try to backstab each other at the cost of people in the city - charge them for it, I'm sure there are other companies that will be happy to take over.