Definitely not just a gimmick. It's aimed at smaller contractors imho.
I bought my first house in the UK less than a year ago. I ripped absolutely everything out. For weeks at a time I had only 1 working sink, with 1 working electrical output. During this time I had local contracters in to deal with stuff I either didnt have the time, expertise or legal certifications to manage myself. Barring a carpenter, every single one brought a makita radio/wifi unit, and every single one needed to leave the house to get hot drinks because the single socket could not safely take more devices plugged into it (chargers on an extension), etc.