>He can't abuse the advantage, his projectiles all get nulled.
Yes, he can, is all he does on this key and how will Natsu nullify the surprise rocket attacks? His Fire Absorption is not passive and Norm can catch Natsu by surprise and Natsu's PN has never been shown to affect people stronger than him, only if it is shown to affect the weaker ones, or else he could have beaten the Future Rogue with more ease and have PN his DS powers, but did not and on top Norm has limitless stamina and will be able to abuse his planetary range all day long
>Again, Natsu's never tried to eat an offensive attack mid air.
And does that change the fact that Natsu will still try to eat Norm's disintegrating rays? It has no difference for Natsu in eating attacks in air or in the earth, literally has no difference at all.
>Power Null isn't inconsistent, he's used it in a weaker form he can use it here.
PN of Natsu in whole FT, has only been shown to affect weaker opponents or the same level of power with him, as: Sting, Zero and FH Zeref and another example that is the most important, is the Seven Dragon Slayers against Human Acnologia SBT, had a moment where Savage Dragon Fire Natsu instead of burning the explosion of Human Acnologia SBT he tanked this, which indicates even more that Natsu even being rage to increase the power of his PN, can not affect opponents stronger than him, on top of that when it happened Natsu's emotions were in his peak and it had been the same form that burned Time and Death magic of FH Zeref.