I would imagine most people aren't going to care deeply as there isn't a high skill requirement for most MSQ duties. You actually trying your best already puts you ahead of a good chunk of players we'll encounter randomly.
If anyone happens to be having a bad day they're going to be just like the people who are having a good day and forget you by the time their next instance rolls around.

So imo don't worry about it and go for it and have fun. At the end of the day it's about having fun.
Perhaps do use PF for harder content, but that's usually not required content.