It's not.

It's not that simple. It's not just another example of 'can't make everyone happy'. They effectively withdrew a strech goal after it was reached and after people paid for it, keeping the money. They might as well cancel the whole tablet (which was the first goal). That's the risk of crowd funding, I'm aware of that, but that's not the point. The point is they announced something and canceled it after they had the money. This has nothing to do with keeping everyone happy.

This is also why further technical discussions about solutions to achieve half-legal SDXC-compatibility are off topic here. I have exFAT on my GNU/Linux desktop computer, so there should be a way to get in running on a GNU/Linux tablet. (I even think I saw it in one of the repositories once.) The technical solution doesn't affect the moral debacle, though.