It's very brief and very easy to miss, but if Naeva's paying close attention (and perhaps a little lucky), she might catch a glimpse of a startled, almost embarrassed expression flicker across Sion's face at that before he promptly recovers his composure. Apparently that question hit close to the mark.

"... When I first arrived here, the Pokémon I received to begin with was an Absol. I suppose that makes me a little fond of them, especially seeing as they've often been mistreated due to being misunderstood."

That's not actually answering the question, Sion.