Maybe they like a driver who isn't putting them down when they make a mistake as mentioned Ryan critisised them a lot apparently and no crew or CC likes that? Also most of you Ryan fans here were happy to see Ryan get a different CC and crew but now you're whining about that as well. This SHR team is struggling and Danica is struggling moreso as SHR struggles to find the setups for this new car. However--they key here is---Danica never criticizes her crew and infact always goes out of her way to thank them as she knows she is responsible for a lot of the issues with the car trying to learn it and give the right feedback etc. Ryan is an engineer and maybe, just maybe, he threw that in their face thinking he knew better then some of them so they were glad to go to the 10 car--Not a complex thing to understand. If a crew doesn't like the driver they aren't going to try very hard as they like danica and I can tell their pit stops are getting under 13 seconds now moreso and that's god that they are getting better but more work is needed as we all know.
BTW Danica loves those cookies as well.