that's the whole point for a lot of us, otherwise we'd just use one of the billion other SBCs.
If the requisite is "I need an sbc to jam into a keyboard that has a modern vid-out" there are plenty of small SBCs and massive keyboards.
A big part of the aim was simply to provide a nearly-all-in-one device for educational computing.
Physical computing is part of the school curriculum in the UK, mainly starting in Key Stage 2 (7-11 year olds, though there's some in Key Stage 1, as well).
This device exists in a very particular market space where for example the CrowPi laptops sell quite well. But it has been made by team of people who are influenced by the BBC Model B and the profound impact it had.
I'm not saying the latter isn't a significant fraction, I'm just saying I think almost nobody buys the keyboard form factor device not to use the video with it.