if you think about it does change it cause filler or not it still represents the series and the fact he did help with this filler kind of says something. not to be rude but we are not here for your amusement.
No, it doesn't change anything because the point that filler material is not manga canon is in itself self evident. For him to have helped out on it only means that it helped out on it. It doesn't mean that he considers it as an essential part of a manga. It doesn't even mean that he acknowledges it as something that belongs to the manga. It only means the he helped out his friends at Toei with some little creative tidbits.
so far there hasnt been anybody that have similar or the same abilities that came from a devil fruit.yeah he wasnt controlling the lava directly but he was tied and associated with the lava. thats my take on it
Well then this fruit pretty much does tie in with a similar ability. I think it is self evident why heat connects to fire as it does to lava. That said if he is not lava but could manipulate it because of heat then the same should work out for fire too. That said, it would be a similar ability to Ace's and yet something totally different. And the same would apply to a lava logia.
And yes I can pretty much find the argument amusing. Don't see a reason why I shouldn't laugh at something that I find funny. Unless of course you're the dude that considered the term "furthermore" an offensive word.