I can't decide if you genuinely believe that Apple is deciding not to spend resources supporting FLAC because you think they have a "nasty attitude", or if you're deliberately misrepresenting the reasons that lead to such a decision.

Supporting FLAC requires investing engineer resources in doing this, and possibly legal resources as well. It's only something that Apple would do if there's any benefit to them doing it. And there doesn't really seem to be any benefit toward it. None of Apple's hardware supports FLAC natively, so adding support to SO X would actually be rather counterproductive as anyone using it would have to transcode it to some other format to get power-efficient decoding support on mobile devices anyway. And Apple's already had their own lossless compression codec (ALAC) for over a decade. Pretty much the only benefit to supporting FLAC natively would be to make things very slightly easier for the 0.0001% of their customers that acquire music in the FLAC format.