Probably view you as someone applying to anesthesia as backup without any other commitment to anesthesia, whether it be electives or aways. If you have all those, then you can just tell them you changed your mind, but if all you're bringing is derm research, it doesn't scream "I want to be an anesthesiologist."
Anesthesia has gotten competitive enough, especially for DOs, that they can afford to just not look at applicants they think aren't passionate for anesthesia. Remember, in 2024 overall it was less likely for DOs to match into anesthesia than MDs for neurosurgery.