I haven't really come across anything too offensive I guess when reading ISFP descriptions. I think this MBTI stuff usually describes every type as this wonderful person who exists in our world. I thought they might be kind of unrealistic in that sense. On top of it, does anyone consider MBTI to have any, oh I don't know what to say, scientific merit or something along those lines that makes the assessment more reliable. Seems like effective marketing behind it though. So isn't this, like just someone's theory. Like another poster wrote, just take from it what works for you. I think of it as a tool to help me become more aware and to help me more fully accept myself, but it can also be a trap if you are desperate for an identity/security.
If you would like to encounter a survey with a happier foundation, there is the
VIA Character Strengths Survey. I have been trying to use that as a resource to accept myself more fully, because I struggle with accepting the more positive aspects of my nature. Good luck with everything.