Don't know why you're skipping the part where Luffy's FS got countered lmao. There's are limits to deliberate ignorance too.
How are you gonna downplay FS by bringing up an FS led feat lmfao. And also...switching speeds can throw someone off completely. Kaidou blitzed Luffy like that once, doesn't mean he can keep that up everytime, Luffy will also adjust.