I think it was much more relevant back in 97 tho. Yes, we still have scummy corporations shitting the planet up, but also, Time Magazine put a international climate change icon, Greta Thunberg, as their "Person of the Year" (god that sounds stupid). That' a huge deal. It pretty much means that Climate change is very much inserted in the world's most influential societies as a matter of discussion.
Of course, I wouldnt say I want FFVIIR to reflect that, because that would be a very big change concerning how the original treated such matters. Even though I wouldnt strike off a potential "more updated" take, even if it's sidelined. Still, FFVII's message continues to brought up a reflection just as it did 23 years ago, which is awesome, to say the least.