They looked better but they were not pristine since a lot of those episodes were remastered in the 90s for VHS release. The giveaway is if the original intro/credits are intact. If it's the S6/Syndicated one you're watching an old, old master in the substandard quality.
If all the seasons are great now for Netflix, then Universal should just go ahead with a slim package complete series set like they've done for other titles they completed themselves. Emergency is one of only three long-running 70s titles that was never farmed out to an independent label (Columbo, Rockford Files).