It's a little early to say for sure, but I predict this will do more to hurt Apple's reputation in the tech community than anything they've done before. And that is not a good community to alienate. I would not be surprised if they look back on this move one day and feel that they ended up net worse off as a result. Apple used to be careful not to alienate hackers. And Microsoft has been gradually digging itself out…
Yet hackers will continue to vote with their wallets, buying Apple products and perpetuating this continuous pattern of bad behavior. Of course the pragmatic alternative, Microsoft, isn't exactly know for being the good behaving kid on the block either. And mucking around with home-built PCs running some Linux distro doesn't have the same appeal to me it had 10 years ago. So what to do?
We're not ten years ago, you don't need to do that anymore. There are enough reputable vendors selling PCs with excellent Linux support.