Yeah, just like "I'm a prince who needs your help to move money" scams are riddled with poor grammar, it's easier to keep it dumb, to attract the unsuspecting.

But on the flip-side, if there's an expert on the flight, they'd notice it's a spoof site and chances are higher they'll report it to the crew. I can imagine the trick is to show a page that says "For free WiFi, follow our Instagram account, click here for our account", and the click will fail because there's no connection (if we're on the plane), but the click can trigger some Javascript to say "If you couldn't follow our Instagram, login using your Google/Amazon account: Username: ____ Password: ____". Or a more sophisticated trick would be to show a DIV that looks like Instagram and the "follow" button, which will then show the fake login...

The privacy-wary IT expert will look at the "Follow our Instagram" and think "Fuck off, I'm not doing that!" and might miss the spoofed login prompt...

Amazon is also super sloppy with domains even when its legit. Working there I had to put my password into probably four or five tlds, and the onboarding process involved giving my SSN to an non amazon.com tld linked from an email that was from a different non amazon tld with a misconfigured cert that got it sent to spam by gmail and dotted with red rectangles and stop signs