Standard? I mean okay, it's one thing to say "we're doing this a little differently than most everyone else" and be clear about it, but it's another to claim that I shouldn't expect the measures to be in notes in the first place, and it's actually MORE common to do it in beats, and z3ta got there first anyway – as if the age of the first predecessor of the software were the basis for my expectations ;)
I just spent an hour trying to find another piece of software or an online calculator that defines "1/4" other than as "a quarter note" (ie 500 ms at 120 BPM), but no success. Not even the sonitus delay included with Cakewalk's own Sonar does it like z3ta, according to the online documentation I could find.
I mean, what does the D and T stand for if not "dotted" and "triplets"? Surely you'll not claim that there's such a thing as a dotted quarter beat? Those two modifiers pretty heavily imply the use of "notes" as the base unit here.
It's also a false dilemma to present the issue as if the only other option were to measure things by ear. Sure, there are lots of ways to skin a cat, but some are better than others, and it's perfectly valid to talk about that. For sync, for knobs, for sliders, and for multiple choice menus too!