I think the live action had exactly the same sort of subtext as the original, but the world has changed, and so they had to do it differently (case in point, eco-terrorists are *still* a group that got taken over by extremists, but in a world with extinction rebellion, and given they hadn’t finished that plot line, it lands differently… almost all the other points raised in that tweet are still in the show, just maybe not in the places they are looking for them) and were doing a different thing. Julia is a very different character, because her archetype and story would be pilloried in a modern western production. So they used changing that, to tell a different story.
Basically, it’s a shame. Because the show was clever in different ways to it’s source, but people couldn’t see that.