No, what he felt was 'as IF a million voices...' etc. It was just that the destruction of a whole planet caused a major force disruption.
What Ewan felt was the Phantom Menace; the general apporach of the Sith whose machinations he and QGJ were drawing close to,
If it was as easy as simply being able to sense who is and isn;t evil they would have a MUCH easier job!