I'm not sure a blanket statement like that can be made just because this will be so subjective and anecdotal. From a brief google, it would look pretty split. AI summary falls on the homemade cake mix side, but reading through some of the blog posts from both sides, I would really hesitate to view any of them as reliable just because bakers are going to be biased towards their preferred method, both psychologically and skill-wise. From my experience in baking competitions, my family and I have had better luck with homemade mixes.

I'm not disagreeing since taste is subjective, and for blind taste tests I could definitely see most people choosing what they are used to which would probably be box mixes. I'd be interested to see if culturally it's different since I think box mixes are generally more popular in the USA.