My only comment would be that it's a shame the trekking/flat bar bike range doesn't have triples. I think that people shopping at Halfords are likely to be beginners, and they perhaps in particular would appreciate some lower gears, especially to get around towns round here like Kendal and Lancaster.
That's my next project you're talking about (if I ever have the money). Riding where I do, mostly on country lanes, rims and brake blocks wear through in no time. Plus discs stop better in bad weather. What's not to like?That's another fast flat-barred bike with disc brakes on. There's absolutely no need for the extra fiddliness, expense and weight.
The roads round here are muddy and gritty. We also have rain. I believe disc work better in the rain than rim brakes. I'd pay to have that 5 days a week. And why worry about a few grammes of extra weight on a commuter?I just don't see a need for them on a commuting bike. They're more expensive, heavier, and fiddlier. Fine for mud and gritty tracks, but not necessary on the road. IMO.