There are future plans that you are not privy to. The old PPaint has been available for a decade so day or two down time on the archive is not that
Amistore.net is not going anywhere soon. After spending 25 years with the Amiga, we are not either.
I am very surprised that the positive news of PPaint being updated for AmigaOS 3 has not been focussed on here instead of an old archive being unavailable for 48 hours.