One MIGHT rudely accuse me of not properly foreshadowing this character, whoever they are, in some way prior to this.
They might also assume, QUITE RUDELY, that it's because my plans for this storyline have shifted so much that, by the time I knew they'd be showing up, I hadn't left myself a way to organically foreshadow them in any subtle way, and had to choose between abruptness and outright spoiling their presence early.
This would be correct, BUT VERY RUDE.
I say. Harumph.