Is that what happened ? Of course you are right if that was the case.
Some assumptions on my part...however...there was no paper talk, or declared interest in Ritchie. He isn't entering the last year of his contract and stalling over a new one or anything like that.
Newcastle sold Townsend, a day later they sign a direct replacement in Ritchie.
Somewhat out the blue and quickly done in comparison to most transfer deals these days. So very much assuming Newcastle put in a bid, Bournemouth accepted deeming Ritchie not needed, so he signed for Newcastle