What was the point of the “enhanced” version? Could Mighty Morphin’ in its original form simply not be re-broadcast?

It could.
They just couldn't advertise it as new or fresh, which wouldn't be as enticing :lol

I just assume they got interns and told them to go nuts with After Effects.
It was Transformers Generation 2 all over again.

Is this topic specific to Saban's Power Rangers or does it also include the Korean dubs/adaptations? They too use the term "Power Rangers."

They do but in the end, they only dub it rather than completely re-shoot everything that isn't suit footage with new Korean actors and sets.

I wonder what Zyuohger will be marketed as. “Power Rangers Animal Force”?

Sounds like they got the approval to do an original series. So I guess that's a gray area.

I need help in showing some guy a really good scene from Power Rangers, specifically from seasons like in Space/TimeForce/SPD/RPM.

He said only Mighty Morphin is the good thing from the show so I wanted to show him that there are far better seasons than Mighty Morphin.

For In Space, show him the final fight scene from the last episode.

There is no hope if they flat out refuse to watch any other series.