I know it's one day late but I personally don't agree with this change.
Using the main entry webpage is much easier for people to look for relevant info, including but not limited to: various articles about this specific award; other info about this year's Nobel, other info about Nobel in general.
This is exactly what the Internet (or WWW) is better than traditional printing media. Using a PDF as a link (which itself can be easily found from the entry point) defeats it.
