I marked that an official website was no longer the official website with the "ended" attribute:
However, looking at the artist in question, the link is still there as "Official homepage":
I'm thinking that URL relationships which are in the past should not be displayed so prominently.
I've added the ended status to my scripts which displays dates on URLs (for artists only) : artist all links.
I tried it on your artist, it is now marked as ended homepage.
Code available at https://github.com/Freso/musicbrainz-server/tree/mbs-4989
Review request at http://codereview.musicbrainz.org/r/2039/
freso/mbs-4989 shipped to beta.