I hope they don't expect people to actually pay in usd and instead offer the conversion themselves. Because I can't imagine people maintaining usd credit cards just to purchase games from steam.

Otherwise, this could be a positive change as publishers can now set prices without the "what if the currency loses half its value tomorrow" insurance margin.

Edit: steamdb has a chart of the new regional pricing. It's 50% higher than the current one for tl and 150% higher for peso.