Purism is insanity. It can lead to preferring an inferior product for reasons of nostalgia alone...
Purism is exactly that, loving an original concept because of the purity of the memories you recall with it.
One thing we all want, is a good completed HD mod for FFVII complete that doesn't otherwise tamper with that nostalgia, but no offense to the modding community here but that is not going to happen soon, the logistics are too much for any size of fan project. Therefor, rather than getting nostalgic with patchy improvements that are open to criticism from individuals with different tastes/memories, a 100% consistent lower quality original can be much better for some people to become immersed in the world they want again - hence the existence of the purists you look down upon.
If Square truly cared for their fans rather than generating quick cashflow they could support and engage the community more rather than milking it, maybe put some of the profits from the re-release into helping to organize and bring support to modding efforts. Just think at what a devoted and loyal fanbase can do for a company when they are embraced, Minecraft, Steam and League of Legends are HUGELY creative, and supportive (and we throw money at them too).
The sooner Square learn this, and stop trying to follow the EA and Blizzard/Activision demons the better - for purists, for modders, for the franchise and the company.