Yeah, it's a weird list. If Ruby is there, Perl should be. I've seen lists with Python on it as well.
That list of languages gave you the choice between dependence on Microsoft, Google, Apple, and Oracle. So maybe they just added Ruby in there to have a neutral option?
Maybe, you never know.
Perl may have managed memory, but it is a great language for introducing bugs.
But its definitely memory safe. :-)
Doesn't ruby have mark-and-sweep GC while Perl only has ARC with no circular reference cleaning?