It's all well and good not planning on moving. Given 1 in 6 home owners would be put into deep excreta by a relatively modest interest rate increase and hardly anyone has a totally secure job it seems very few indeed could be assured they'd be safe.
If you have no outstanding mortgage and a fixed, guaranteed income perhaps you're fine. For those who aren't retired / buy to let landlords / independently wealthy / baby boomers it's a quite different story.
I hate to say it, but maybe this product isn't actually intended for everyone to take advantage of. There seems to be a certain amount of entitlement floating around, to the tune of "there's a fast product available right to my door, but it's priced too expensively and the terms are too constrictive for me to take advantage of".
This is an expensive product, that seems to be there to fill a niche requirement, at least in the short term. If someone doesn't have the income, or the stability of accommodation, to take advantage of it, then they can't have it.
I personally would rather the terms were shorter, and the cost lower, but I'm very lucky to have a good job, and some savings to cover it. All I need is for Openreach to get a move on and enable my local exchange, so that I can actually see if it's a viable option.
(PS this response is not intended as a personal attack on Ignitionnet, his/her post was just the one I responded to, as it summed up the sentiments that were expressed by a few posters.)