The minecraft wiki has moved off of fandom, fandom just overtakes it in SEO.
Linking to the fandom wiki like you do on this site probably helps fandom more than you're hurting it. Just help wiki maintainers move to better platforms.
if you open any of the links for Minecraft, TARDIS, or Zelda, you'll see there's a gigantic banner placed by BreezeWiki that directs you to the new wikis. unless you mean that the links themselves are bad for SEO, which is unlikely
There is still some activity on the fandom wiki. So for any casual observer, it doesn't look abandoned.
NetHackWiki (somewhen around 2010 or 2012?) moved off fandom when it was still called wikia. It took several years to overtake the older wiki in search results even though the old one was completely abandoned and vandalized by humans and bots, and active engagement by users to change links to the new wiki location all over the internet.
Linking to the fandom wiki like you do on this site probably helps fandom more than you're hurting it. Just help wiki maintainers move to better platforms.