putting prestige upgrades the player can never get because there's no working prestige system on the upgrade tree, and putting screenshots of levels that don't exist also because there's no working prestige system, is straight up false advertising and a very obnoxious way to do things
he could've not put the fake prestige upgrades in the game or the fake screenshots on the page. in fact, not doing that was the default choice, and an active decision was made to put the false information up. it's 100% false advertising, because the game does not exist and neither does any of the content indicated, yet it still pretends that that content does exist