What happened to the NKIT Wii games?

Hello! Longtime fan, first-time poster here.

I have been downloading Wii games from Vimms lately and I noticed. at some point in the past week, that the NKIT.ISO files are no longer available, and WBFS is the only option. Does anyone know why this is? I noticed that the NKIT GameCube games are still on the site, so this seems kind of random.

I would love to get access to the NKIT Wii files again if they're still available as I like the small file sizes, though I understand if the site has taken them down for a good reason. If they are truly gone and aren't coming back, does anyone have any recommendations for alternative places with small NKIT files?

Thank you in advance!