Hmmm... I have to say, I can see why he might. Megan Fox has made some incredibly interesting comments about her time on the Transformers set for the two installments we have already, likening Michael Bay to Hitler and other such things, but seriously? Killing her off? I don't think that's necessary. To kill her off and replace her with just some other chick would be stupid. So she likes to run her mouth and say outrageous things, BIG DEAL! I seem to remember another important part of the movie, aka the director in question Michael Bay, say that he was 'done' with the Transformers series. Maybe people say things sometimes that they don't really mean Mr. Bay. Sure, you put her on the map and all. But sometimes we like to open our traps just for attention (or more $$$ to make our next movie).
Why do I defend her? I have to say that yes, I am a Megan Fox fan. Not because she's an super talented actress, and not because she's hot as hell (even though, yes, she is). I really couldn't tell you why I'm a fan, I'm just drawn to her for some reason. I think it's because of the outrageous shit she says, and because she seems to not be all caught up in the Hollywood party life that so many young stars fall victim to. I do think she does an adequate job in the Transformers films, and I loved her in Jennifer's Body, so I guess I think she's an alright actress.
But I'm also a Transformers fan, and I just don't think the movies would be the same without her. I'm a girl, so I do kind of enjoy the romantic Sam/Michaela love story subplot. I don't want to see her die and then have some other hottie jump in and steal his heart. That wouldn't make sense, although this is Hollywood so anything can make sense, but still.