In the real word that should happen, but we all know that it's the other way around, hackers or scammers are always one step of the game here. And it seems that they are really doing a good job at casing and taking advantage of not just trust wallet, but any other crypto related things that they can get their hands and scam people of their hard earn money.
So yeah, the moral lesson here is just be careful and not to trust anyone here in this ecosystem. And everyone should know how to practice security hygiene, otherwise you will fell victim to this criminals.
Even if no action has been made by trust wallet owners still its up to the users discretion to avoid getting scam since they should think more before participating on any random airdrops. Newbie is their primary target so newbies should need to be more careful on what they are entering since losing money due to scam is commonly happen to them if they are not so careful picking airdrops posted anywhere.