Yeah, nobody is going to be "angry," which is why they can do it. That being said, there's still a purpose and intention with initially advertising it as limited to only 4k and to members only for 48hrs. They put that in for a reason. The implication is that, if you want to insure that you're able to grab a copy, become member. Otherwise, that 48hr window means absolutely nothing. And, of course, it doesn't. If the pressing is unlimited anyway, why not just do like they've done for other pressings and make it open to the public from the jump? My guess is that with those other releases they were the only ones selling them, while this is a simple variant. A variant with a potentially endless run. They're rocking back and forth between narratives that cancel each other out.
Even when they specify that 4k is an initial run with a "potential" repress down the line, it puts the idea in heads that another pressing is only likely, but not guaranteed. With what Idler Wheel is selling for now, there's still incentive to buy, because there's no guarantee when that repress might come and, if you want it later, you might be stuck dealing with the secondary market.
I should clarify that I'm not complaining, I'm just somewhat fascinated. They opted to scrap that initial plan after they already began the roll out. They're weighing what makes more short term financial sense, while trying to balance the implied value of exclusivity, rarity, and being a member, with trying to sell as many as feasible with an uncapped run.