You don't use vectors very much on the BEAM in general, so I wouldn't consider this very important. Maps are more popular, but have a complicated relationship with records and records have, due to historical reasons, not seen much light on the BEAM in general until lately.
Tuples, which you could use as vectors, sort of, can be written as follows:
(tuple 'hey 'ho "let's go") <-> #(hey ho "let's go")
Tuples are infinitely more important than maps on the BEAM and so they deserve special syntax.
I think insisting that everything should be like Clojure is a great way to not really see anything different. While I understand that your idea is that "everything else should see what's so great about Clojure", maybe you could take that to heart as well.
Edit, addition: I wonder what the stats on posts starting with "I'm/As a Clojure fan..." are. If someone is an Archlinux user, a vegan, a crossfitter and a Clojure user, which do they tell you first?