Making a list of things to moan about, and being able to do anything about it, are two different things.
I am 100% certain nothing will ever change - not until there is a complete change of attitude within the CAA resulting in a re-vamp (and hopefully a wholesale modernisation too) of the PPL. This won't happen until the whole lot retires.
I think a whole new syllabus is needed, and then one can look at the sort of people that should be teaching it. One problem is that nobody likes to be given something they regard as too prescriptive, which is why old attitudes about the "right way" to do something linger on for so long.
It's a bit like family law. FL practitioners (both lawyers and judges) are fiercely against having their freedoms curtailed. So there is a huge variation in decisions, and there is no prospect of certain changes being implemented. The fact that the stuff is usually heard behind closed doors just keeps it ticking along nicely. One could argue that lawyers have a far more powerful and effective lobby than anybody in GA, but in fact the flight training business is pretty powerful when it comes to lobbying the CAA - it's by far the strongest voice around I reckon; they just don't make their representations in public.