User blog comment:Sammyrock0087/Heist Update is GLITCHED TO SHIT./@comment-25261281-20150311214819/@comment-25261281-20150311220133

The message appeared because the update made all helicopters/aircraft available for free. Because before, you had to buy them. So it's actually possible that R* wanted it to be a MP exclusive.

(I love the Hydra btw)