Well obviously I can't speak for all schools and departments at all research intensive universities but I know for a fact that at Nottingham the history lecturers and tutors design and offer modules that are in-line with their own previous work, current interests and research projects. How does it make sense for them not to do that? Every tutor I've ever had the honour of being taught by has been very well read and researched in what they're teaching us and often their passion and knack of understanding for the topic is passed on to us, the students, which most usually makes for a very enriched learning experience.
I have had seminars with only 2 tutors who were not in possession of PhD's at the time but now are. All other lectures and seminars have been given by field experts.
In addition to this, there is quite a good 'open-door' policy at Nottingham. Tutors/professors, whatever you wish to call them, have weekly office hours and are always contactable over email. I've never found myself or my questions ignored. They are in fact welcomed. If pieces of work, especially independent research projects, extend into areas of expertise that aren't your supervisors other tutors are usually more than willing to offer some direction and advice which I think is great.
I find it quite hard to believe that this wouldn't be the case in other good History departments?
Could the reason for a lot of people saying it doesn't make an ounce of difference or in fact impacts negatively on the teaching be the fact that a lot of the time the pioneering research simply might not be of the level of the average undergrad and this is why it doesn't seem to be taught etc?