So why do I see it going down the hole that Perl and ColdFusion are already occupying? I see the other side: it's a sinking ship. FB comes to rescue PHP, but i

So why do I see it going down the hole that Perl and ColdFusion are already occupying? I see the other side: it's a sinking ship. FB comes to rescue PHP, but internally seems to like anything but PHP for greenfield projects: Java, C++, Erlang (chat msg broker), OCaml/Reason (messenger.com app), even Haskell is used for some spam filtering tool.