What does who releasing it have to do with regional pricing? If a region has a much lower cost of living, releasing it at the US region price is stupid. If the game is release in Whateveristan and they made $100USD a month, at most, releasing a game for $60USD there is stupid.
What do you care what someone else pays for a game anyway? If the price offered to you is fair, who cares what someone in a different region payed.
When they started, GoG.com had a single price for all regions. It was a "fair price promise".
They recently (earlier this year) started to introduce regional pricing in response to publisher requests (probably due to trying to get more "mainstream" games on there).
They have now decided that they themselves (CD Projekt) will also have regional pricing, even though it's their own service that came up with this price promise and had non-regional pricing from inception to 2014.
So yeah, learn a bit of history.
And their DISCOUNTED (10%) pre-order price from GoG.com in my region is higher than even a B&M new game, and their regular price is just obscene. I can buy it cheaper than the 20% discounted price for having W1+2 on GoG if I buy from Amazon.