It's just my opinion. I'm not trying to enforce it on yours.
As you're free to say that it's better to have games using regional pricing than not have them at all, I can say the opposite. That's freedom, equality and democracy at last, and through all our arguments we get better.
Let's clarify some things though. We're on the same side. I'm here for the DRM free. I don't use Steam or any other DRM system (malware to my eyes). I respect the work of others and I never pirate.
Remember that one flat price was a GoG's principal.
Think what would have happen if GoG drops another principle. If some publishers could offer their games here using DRM, they would have done so, because they just could do it as in almost all online shops.
Let's get back to the pricing issue. The problem with regional pricing scheme is that many games that used flat price, now adopt regional prices.
Check
this mix for example.
Unfortunately we cannot deside about such things. If a scheme is available everyone can use it. So we get back to the ethics of publishers and users. But how a developer/publisher respects us, while treats us differently?
What GoG and us as its users can do is to present to the developers/publishers a strong user base with deep and strong principles. If they respect us, they can have our money.
I don't want to start a fire here. You can disagree with everything I say. I respect that and maybe I'm wrong.