Not saying you "have" to know or that the interpretation is even correct for this case, but, just to explain:

The "I'm sorry you feel this way" is quite a recent phenomenon. It started showing up in public apologies by companies and celebrities, purely for PR. It's basically a deflective euphemism for "I'm sorry that you don't like whatever happened" without really admitting culpability, sidestepping all responsibility.

With that said: I don't even know if the author (Kiki) is a native english speaker, since she's part of other language translation groups, so it might be 100% without intent. But that's how a lot of people perceive it today.