Quote Originally Posted by Ryllharu
It's been mentioned over and over during conversations with Suzaku that everyone thought he was in the Research Division, in a non-combatant role. He never lied to anyone about it, he always just said "research division." Everyone simply assumed the rest. This became clear when his cockpit was cleaved open and the reporters were all in shock that an Eleven was piloting a Knightmare, not to mention the most advanced one. It would be a huge shame upon Britannia if Euphie hadn't to saved it by declaring him her personal Knight. I'm sure she wanted to do it anyway, but there was not better time.

So Lulu hasn't been ignoring Suzaku, he honestly didn't believe his friend would be piloting a Knightmare, since he had no reason no to believe Suzaku's story about being a non-combatant.
Im assuming I wasnt clear enough. Lelouch has been ignoring the the lancelot itself in all the previous battles, not really thinking of ANY countermeasure against it. It doesnt matter if he knew Suzaku was the pilot or not.

But the fact that Suzaku was the pilot is probably what caused such an inconsistency, to prevent a main character from simply dying like he logically should have.

And Suzaku lied like crazy, saying that he wasnt exposed to combat and danger, clearly untrue.