Yeah, it’s too bad Apple doesn’t let you change to one of many industry standard reference modes of your choosing. /sColor accurate professional monitor. Ships with color inaccurate True Tone enabled by default. Makes complete sense.
It would be asinine for Apple to make a specific reference mode as the default since they are tailored to the content you’re working with. So having the monitor default to work as a regular monitor (and using True Tone) is the only reasonable (and logical) mode to start as.
What alternative do you suggest the default mode be? Perhaps SMPTE RP 431-2:2011?