There's another reason it should have said that: because doing so would have meant respectfully using the company's official name, rather than misspelling it for the sake of ridiculously strict adherence to house style. That is of course a separate issue, though.
In putting it out as an IG story rather than as a standard IG post, he at least shields himself from some of the potentially negative consequences (e.g. easy reposting, an exploding comments section, etc.) of speaking out. IG stories are ephemeral — at least to the extent that anything posted online can be. (It has of course been rendered more permanent by being reproduced here, and perhaps in other places.)