Since I got an answer to my inquiry to eurail/interrail and it is too long to post in a comment I will put it here as an answer:
Thank you for your email to Eurail.Com Customer Service. Yes, as a
rail passenger, you are entitled to several rights according to the
European Union Law.You can find more information on the page of the European Commission:
http://ec.europa.eu/transport/passenger-rights/en/13-rail.htmlYou can also find the European Union regulations on:
http://ec.europa.eu/transport/themes/passengers/rail/Since the Eurail Pass entitles you to use the train in Europe, you are
of course protected by the EU law when you will be traveling with your
Eurail Pass.
I believe this boils down to the same regulations and rules that was stated in the original question, but I did not have time to go through it all to make sure. However I do find the links provided by the eurail/interrail customer service to be a lot easier to read than the actual regulation texts, which is why I have posted them here.
Also note that the first link also has maritime and air travel rights information.
Credit:stackoverflow.com‘