No it is just your interpretation.
And the manga proves it because the explanation consistently works, lol.
It's the strongest form of armament, thus why only the strongest characters can use it.
Tashigi can't because she's not a very powerful character.
Asking again: did Cracker did not go all out against Luffy?
That fight wasn't a regular fight.
It was Luffy running away, therefore, they couldn't really fight like a regular fight would be fought.
It was Luffy trying to exhaust him and him trying to subdue Luffy so he could kill him.
Not a death match like most fights are where ultimates were used bud.
Again, I think it's clear you're not highly understanding of the series.