I don't see it as the person you are replying to is talking about the ratio, but the absolute number. Even if it was the case, your "no" to their statement is just wrong. It is literally the next sentence in your quote:

Pit Bulls were responsible for approximately 66% of fatal dog attacks in 2023. Historically, they have accounted for 66% of fatal attacks—346 out of 521 deaths between 2005 and 2019

Those are the numbers in the infographic. That is a 12ish year period. "No", is just such a misleading statement. And by your own admission, that is the numbers by "Dog Bite org".