Removing RSS functionality: A defensible decision, I think. Many excellent third-party RSS readers are available and this fits Apple’s overall theme of simplifying the OS: there are more system apps but each does less and only a very specific thing (Mail was split in Mail and Notes, iCal was split in Calendar and Reminders), iTunes being the big exception. RSS was never a good fit for Mail, why should Apple have to schlepp around that ballast for all eternity?

Removing user data: That is indefensible. There should be a painless way for users to export their RSS feeds on first launch (an OPML file would be minimum, better would be some even tighter solution that is not as painful and annoying as dealing with an OPML file.

(Yes, I know that technically Apple didn’t remove the data – but no one should be expected to conduct such a preposterous rescue mission for their data. This is also not meant as a criticism of her, it’s pretty clear that she is more or less ok with Apple removing the functionality, just not the data.)