I mean, sure... it's just that GloboCorp builds a whole lot of stuff and this guy is upper-middle management on one of the less pizza-heavy parts of it. Looking at his resume he's been a producer in the publishing trenches for quite a while. These aren't the corporate overlords you're looking for.
Jumping into LinkedIn with "here's some how-to-get-hired tips" in general is an extremely dystopian, funhouse mirror thing that people in corporate jobs tend to do. I know those guys, some are super earnest and kind (and most are more self-aware than this guy), but it's all the same blob of online posturing in the alternate reality of corporate social media.
I don't know that I see much of a difference between the dissociative tone-deafness of the original post and the performative outrage of the reaction. It's all the same dystopian mess of fake, dehumanized pretense. And man, is it horrifying when that mess decides to become pin-sharp and target the one idiot.
I'd burn it all down at this point, honestly. It's not worth it.