Surely English Heritage will be doing their study based on how it affects the infrastructure on ancient buildings (where I doubt they would risk stripping away ivy from an old castle or monastery anyway), not based on the damage it would do to strip off ivy from a new build like the Right Move house, that isnt not exactly built to last for hundreds of years.
Damage isn't necessarily just caused by the ivy growing and adhering to the brickwork and pointing, it's the damage it does if someone pulls it off, and its amazing how clueless people can be with all aspects of DIY including that. One would expect a modern survey would raise any concerns as to whether its a risk to the infrastructure. Personally I've always given a swerve to anything growing up the walls, not worth the risk and hassle Inc guttering and sophit maintenance.