Frankly 'Hot and Hi', your assertion about the manufacturers is somewhat simplistic. As Crab said, most of them have an interest in promoting all helicopter types.
'abgd', you are quite correct in your statement; the 'land clear' rule is just that (as can be seen in the US version shown above). Nothing in regulations (North America or Europe) prevents flight over those parts of cities where a safe forced landing could be carried out; that is more to do with the 'fly neighbourly' policy.
Some time ago the link to a paper on the application of exposure to flight over a 'non-congested hostile environment' was put on the HV thread. There was a suggestion that it was incomplete because it had not considered flight over a 'congested hostile environment' (the subject of this thread) and asked for it to be addressed.
The paper was amended with the addition of sections 4.5, 4.6, 4.6.1 and 4.6.2 (and their respective notes) and can be found here:
https://www.dropbox.com/s/pvrwu1jhpe...MS%29.pdf?dl=0
Jim