I love this fallacy. He lied to cover up story details, but somehow in the Transformers community he's treated like a pathological liar who did it to be a jerk. I'm certain you'd all love to hear him spoil the films before they get released. That'd just make you all love him more.
Still I'm glad it's Bay doing the next films. He's the only director who can really pull off the series properly even if the Transformers fanbase likes to stick their head in the sand about it. Not too keen on LeBouf returning, but I'll manage. Never watched the films for him anyway.
It's not a fallacy. There's no reason to assume he wouldn't lie to cover it up. He tries to keep surprises for us but we end up revealing them anyhow. He kept saying DOTM was his last, apparently it's not entirely so. Rather than fess up and take all the whining, he can at least keep some of us at bay. (No pun intended.)
I'm one of his biggest supporters, I just know he does lie to hide things from us so we're not spoiled. We ruin it for ourselves. We make him have to cover it up.
I've liked Bay as the director for this series for quite some time. I just acknowledge his flaws and propensity to lie.
NOTE: Realize that I am not a perfect Christian, nor do I profess to be. I apologize if anyone's ever offended by me, I'm not perfect. Don't hold my posts and opinions against other Christians.