Chain combo button

[Seraphor]

Thus having it be an option is the best compromise.

And create an entire subset of players who think they can just 'spam the attack button' with no consideration of which attack grants them job gauge, or requires a positional, or inflicts a debuff, or maintains a buff.

You will need to keep a constant mental count of how many times you've hit that button, and whether or not you've interrupted a combo.
"I've hit that 7 times, but after the 5th I used another weaponskill, so the next hit should be my buff..."

How is that fun?