This archive exists because I want it to. Back when it was created there was no /v/ archive at all. It also had search but I had to disable it because the search backend's RAM usage consistently went up as the database got bigger (/v/ alone has at least 42 million posts archived, can't give an exact number because counting very large tables on InnoDB is extremely slow).
I want a reliable archive to exist. fireden.net
is down quite a lot (like right now) and archived.moe is an "all boards" archive and those usually don't last, so the only option left is to run one for myself.
Nobody's forcing you to use it, so I don't see why you're so upset. Actually, riddle me this: if running an archive with search is as easy as you describe it, why don't you do it yourself?