And yet there's still a product, still a date that product will ship to customers, and therefore time estimation is at some level necessary. Often there's a factory building something, physical shipping, late fees, etc. If you're solely responsible for setting all your own deadlines, then there's no need to estimate time. That's very rare.
Time estimating is broken and inaccurate. But that doesn't mean it's unnecessary, or that one can just give up on it. Teams should focus on delivering value incrementally, then using time taken as a metric (among others) over those increments as a measure for future increments.
