Nicely done... Ignoring the post i quoted to hide the context like 5 pages later.No, JC is saying that the attack action must be completed before you are allowed to take the bonus bash.
He's saying that attack -> bash -> extra attack is not legal, because Extra Attack is part of the Attack action and Actions are (now, suddenly!) indivisible!
Bravo!!!!!
Encore!!!!
So other do not have to look back to see and admire your skill...
The post i had quoted setup the (bogus) example of taking the feat at 4th level, being able to make one attack and bash at 4th then leveling up to 5th and then no longer being able to make one attack and bash since now it required two...
My point was of course that it wasnt so...
4th make one attack then bash - legal
5th make one attack then bash equally legal.
But also added was
5th make two attacks then bash legal.
JC ruled you have to complete the attack action, cannot insert the bash between them but in no way did he require you to take two attacks as part of that attack action.
So the example saying that one attack then bash was no longer legal moving from 4th to 5tth was wrong...
Going to 5th adds
Two strike then bash
Going to 5th does not add
Strike then bash then strike
But the 4th level option of strike(once) then bash is still perfectly legit.
It does not as the post i quoted said "require two swings" to get the bash, but you **can** at 5th take two before bashing.
But again, excellent job at sleight of context.
Ill give you the like for it. Skill should be credited.