My opinion on this collab:
These aren't even original Street Fighter characters. Motoko Kusanagi was an exclusive. Elizabeth Liones too. But these characters are just fuckin COSPLAYS.
They didn't even bother to hire the voice actors from SF6 english dub.
They simply blatantly reused voice assets from already existing characters. And this exact same cheap trick was used on NieR Automata and Gundam collabs as well (at least Gundam had some japanese custom voice lines).
Not to mention that these "legendary characters" don't even have a kill counter, custom voice lines, nothing. All their resources are merely visual and it doesn't add any value to the shitton of money people are spending on it.