Don't equate £100 powered speakers with professional actives. These are aimed at the budget amateur music makers. This market can be terribly anti hifi. I've given out countless recommendations to use the speakers someone already has (an ok KEF or B&W) for simple monitors for the argument that they're "hifi" speaker thrown back at me. Even the saving of any extra spend didn't work. They had to have the KRK (or whatever brand).
A slight aside to the Beolabs. They are a tour de force but I have a feeling that some of their expense has gone into making them do many tricks. This is the advantage and ATC has, it's not trying to be a universal speaker.
This isn't to say the Beolab isn't great, it just give the hint of a new Bugatti - "a car to drive to the shops or the race track" and it ends up costing a fortune. If you want a VW for shopping get a Golf and get a porker for the track. (I understand the cache for some of the price and brand, it's the concept that causes some of the expense).