They used to. They had a actual server (rackmount even) just for apple shit. It didn't work out for them. They were trying to create a fully closed ecosystem and everyone kind of told them to fuck themselves.
Now they consider some of their "high end consumer stuff" "server grade". It's still not. Its retarded.
Right hence my 2011 when they killed xserve.
But yes, the M chips smoke. But a stack of minis a server does not make.
But yeah they are marketing it as such.
"Look at this thing that sucks ass in a DC environment but let us call it a server".
Fuck you apple. Fuck you so very much.