Hello,
Tom, I would personally not count too much on it. in 2008 I had a private meeting with some top executive of PTC during a PTC world in the UK.
We were about 5 selected customers in that room. I was the first to talk about this issue of licences and the 4 others joined me. In 7 years PTC has not changed anything. Maybe they prefer us using third party software to take docs out and post them in SharePoint or other system. (We developed our own html page to retrieve the documents. It was very basic. A box to enter the document number and the pdf opened. so the html page took about less than a hour to develop !!!).
I do not understand why PTC do not try to penetrate more the entreprise. They have the technology to defeat SharePoint
Best regards