I don’t think that AI would have made this confusion (it’s much less likely to overlook things like these), and I’m also not of the opinion that these comments confuse the two companies, it’s rather than Spotify is used by the grandparent as another example like Shopify.
Actually, the first occurrence might have just been a typo (auto-correct?), but the second occurrence looks like slop directed at the previous comment.
Aight, I recognize I only skimmed through the comments, I was completely convinced it was a typo because it has to be a big coincidence that in a post about Shopify suddenly they talk about Spotify and it's not by mistake.