All of that sounds good on paper, but in practice Scylla will hit 10 instant detonation Crushes while poor Nox is getting countered by relics/zig-zagging (try zig-zagging vs Crush) or her root gets bodyblocked/cleansed by hel/geb/someone-else or she is fucked up in some other way. Or she simply misses root and does nothing (impossible to miss Crush as Scylla).
Not comparable at all.