Hi Les
Openstreetmap is an open data project. We can only use sources that are not subject to copyright and that we have permission to use.
The gold standard in mapping is seeing it with your own eyes.

We cannot use either Google Street View or current OS maps for this reason.

OS gets a little more complex as there is OS Open Data available, but that does not show rights of way data and we can use historic out of copyright OS maps although obviously things may have changed in the 25+ years.

In the absence of valid sources I believe that this changeset should be reverted.

Hope this explains things, don't hesitate to ask if you have further questions.

Cheers Phil 