What's the answer? It doesn't play audio for me.
Essentially lack of denial.
I'd imagine if they recorded an audio answer they were not being serious, so makes sense you found it weird. Bellingcat claims a lot of things with no evidence, it's not a serious source IMO.
Almost all Prigoshin's statements are audio and video messages.
Well, this sure looks like an evidence of Wagner's commander having a neo-Nazi tattoo [0][1]. Besides Utkin's personality there doesn't seem to be anything else.
[0] https://t.me/concordgroup_official/729
[1] https://t.me/concordgroup_official/736