Funny, because what Gai did was not pure physical, but using the air as an attack + using chakra on the outside of his body. "You've got to be kidding me about releasing all the chakra"... if you think its impossible then you obviously need to read the manga again.
Naruto can't use all of his chakra inside his body into 1 attack...... he is not Sakura. Sakura was able to focus entire chakra of her body into 1 point, hence why she is miles above Naruto and others in chakra control.
Um......... so using nothing but one's physical strength and speed to move air into a cannon, when it's stated that the direct punch is more deadly, doesn't count as a physical feat? And yet, using chakra explosions in one's fists counts as physical strength?(Sakura) Please tell me you're joking.
Oh wow............ Epic fail. Naruto's capable of altering chakra to suit the chakra of other shinobi in an instant.(runs and transfers by high fives) Later on............. Naruto gains so much chakra control, that he can use ransenshuriken one-handed (as RSM Naruto and Last Naruto) That means he puts the highest level of nature and shape transformation of chakra simultaneously without splitting into multiple people. As Naruto stated, "it's like looking left and right at the same time." Naruto's control is so good by the end of the series, that he casually does things considered
impossible. His chakra control surpasses the limits that the world knew of. On top of this, RSM gives complete, universal comprehension of all things and gives the user comprehension of chakra with the skill of a well-seasoned, highly-sensitive master. The idea that Sakura has better chakra control is a joke.
People can't accept that.
Well of course not. We're not going to accept something laughably ridiculous.