I mean no offense at all, but I really people wouldn't push DeepL (or any machine translation) as the way to understand -- well,
any Japanese, but especially extremely nuanced, literary Japanese. DeepL literally has no insight whatsoever as to the greater context of the story, and does not possess a more fundamentally enlightened knowledge of the text than karenk, Majestic, you, or literally any human being analyzing this.
If there are no "rabbits" in this story, I would be very, very, strongly inclined to think that is _not_ in any way the correct interpretation.
兎 can be read as "と" and
とて is an expression, so it could possibly be related to that sort of meaning, but I can't say this is something I've encountered previously, so I'm hesitant to speak definitively about it. (Which means I guess I should probably shut up about DeepL? But still, I feel the need to discourage the use of machine translation as a way of truly understanding Japanese.)