It sounds like a cool feature, but (If what I've read is true) it's problematic MOT wise if they play up, and costly or nigh on uneconomic to fix in some cases. Fair enough if you just ignore them subsequently, but my understanding is that isn't "allowed"
Anti-lock brakes I think likely are worth it, though to be honest I'm less bothered for a car. For a (motor) bike, despite the parts being more exposed and hence prone to issues, being able to confidently grab a handful in emergency, is worth a lot. I've never had them operate on the bike, and am confident enough to "cadence brake" in the car, so whilst happy to have
them, am less fussed if they aren't fitted. An instantaneous lock up in the car is no big deal, but unless you're Barry Sheene, on a bike you are likely sliding along on your arse - if my pedal bike experience is any guide.