Board Thread:Naruto Discussions/@comment-1500702-20190701205352/@comment-1500702-20190701215030

Frequently like when? BFT and FTG are not the same, that was made very clear.

As for the feat, it wouldn't make sense if it was FTG, because every Hokage appeared there separately. As far as we know Hiruzen and Hashirama don't know how to use FTG so they couldn't appear them on their own.