Fascinating debate, thankyou for the contributions.
One of the reasons I think charitable status hasn't worked is that CRT simply isn't 'lovable' in the way that 'National Trust' is. By adopting a corporate ethos (seemingly driven by brand obsession, remorseless secrecy and a refusal to publicly take responsibility for its shortcomings) goodwill from its users simply doesn't exist - the ever declining satisfaction of boaters being a prime illustration (which simply isn't a matter for discussion).
Admittedly, CRT is caught in a tragedy of the commons. Everyone thinks they have a right to access the towpath to walk, run, cycle and now (encouraged by CRT) to paddle but no one is prepared to pay more than £1 per person per year in E&W. Why should they? It doesn't matter whether the canal is 4 feet deep or just six inches. Doesn't matter if locks work nor if all the wharves, yards, and other properties are flogged off to developers. Doesn't matter if 35,000 ageing white folk can or can't go boating. The demonstration of health and wellbeing strategy isn't just futile but it's actually existentially dangerous to the fabric of everything most of us hold dear, namely the maintenence of navigation.
So let's start again shall we?