There is now a link for S12. Links for S03-S06 and S10-S11 have also been posted. On January 7, links for S01-S09 were posted, and the show became available (for 16 hours) on Monday, January 8. Hopefully this means the show becomes available after midnight ET, but if not, possibly sometime this...
Man, that was quick. I was able to find the links by sorting the search results by "newest arrivals" because they didn't show up on the first page when I searched earlier.
You can see S02-S09 by searching for the show in the search box at the top of the page. They're using wrong thumbnails for most of them, though. For example, the thumbnail for S03 shows Robbie, Kaite, and the triplets. That thumbnail should be for S09, but the S09 thumbnail looks more like a...
It's there, listed under the "Coming soon to Prime" section. There are now links for S03-S09, but all redirect to an unavailable page. S01 and S02 are also still unavailable.
It looks like the series is now officially on Prime… but just one episode as of 12:41 am ET. I was told that the series was added on December 21. There are only links for S01 and S02. The S02 link shows an unavailable page for the moment. The only episode up is S01 E22, "Man in a Trench Coat".