It’s ‘fight club rules’ as most of the interesting stuff has footpath status, and I respect the skills that these guys show and that they don’t publicise the routes. (There aren’t very many, if any, bridleways in Calderdale with steps! – but as you say, you’re local, so you would know that ?)
Anyway, two of the bridleways in the video are Colden Clough & Hep to Blue Ball Inn. If you live in the area you must have ridden them as they are very well known routes. There is also another nice one which may or may not be in this video between Popples & Colden Clough.