... you think It was good time?

Not being able to publish anything without sifting through all the libs licences? Remembering legalese, jurisprudence, edge cases, on top of everything else?

MIT became ubiquitous because it gives us peace of mind

You have to go through all the dependencies anyway, to roughly judge their quality, and the activity of their maintainers. Quickly looking at the license doesn't take any more effort.

Totally realistic expectation

Considering you have to list all used open source software, their authors, and their licenses in your UI anyway, sure.

Or how are you handling that?

Sure, sometimes you can automate some of it, but you'll still have to manually check the attributions are correctly done.

> ... you think It was good time?

Yes, as do, probably, most people who remember it.