No, that’s not how hijackings work, and not why they decreased. They did not “let the hijackers do what they want,” and anyway, how would that discourage hijacking? If they were letting the hijackers do whatever they want, wouldn’t that ENCOURAGE hijackers?
Yes it was how it used to work, that’s why the planes would end up diverted. When that stopped being standard protocol, the hijackings reduced. You got it on that last sentence in that paragraph but for some reason think I’m arguing changing standard protocol to NOT allow hijackers to do their thing would encourage hijackers. You read my post backwards.