Risa

TNG, Voyager, or even ironically Strange New Worlds episodes would have failed badly in the 60s because they showed progression that was far out of range of that time. A "real" glimpse at a Star Trek universe would probably upset a lot of people now because it would be so different. While it's a show about optimism for the future and betterment of society, it is still a show that has to cater to the present audience.

It's like looking back at older books or shows and critiquing their ethics and language based on today's standards. Not a very fair assessment, especially if you use a few "infractions" to toss out the good parts.

The thing about not calling attention to things in the show is Gene's "show don't tell" philosophy. He believed the audience was smarter than the networks gave credit.