[caseysoftware]

Pivoting sin't because they've failed. It's because the path to their goal has changed or isn't what they previously thought. Basically, they're adjusting to new information (market, industry, etc) just like the rest of your definition.

Yes, it's an overused term but it's NOT a sign of failure.

[aptwebapps]

I think this is bordering on a no true Scottsman argument, although maybe unintentionally. But whether that's true or not, I think lots of people take it as a euphemism for failure.