No. The main reason is because we don't have a good place close to get meat that is suitable.
Also, I despise touching meat... the feel is so nasty.
I might switch them to raw later in life... I would love to now, but its just not really easily done.
If Frisk has survived 6 years (and Ethan has survived 3) on dogfood, I'm sure he can last a few more.