Why wasn't the last Die Hard movie called or should've been called Old Habits Die Hard?

i do note though apparently if they ever make another Sister Act movie apparently it's called Sister Act 3: Back in the Habit or some online google result I read once lol. Ah well sighs.

If only Bruce Willis had made Die Hard 6 and I wish it had been a joke on joke title called "Old Habits Die Hard" because obviously he could've still made the film in his 60s before the diagnosis a 2-4 years ago

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Or with a grammatical correction Old Habits, Die Hard (Die Hard 6) 🎥📽️ 😋
Why wasn't the last Die Hard movie called or should've been called Old Habits Die Hard?
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