Maybe so. Re-reading his post, though, it looks like he has wanted something that replaces XS, as well.
He lays out three steps. First, a minimal bootstrapping language which can replace XS. Second, Rakudo's intermediate structure to represent the language (or something better). Third, Rakudo's metaprogramming system (or something better).
To hammer the point home, he then says "Figuring out a replacement for XS is essential".
And in another place, he actually tried writing a little bytecode interpreter which granted the power of C, without having to write in C. I think that's one peep into his vision, in a way.