Except it completely isn't the same. If you run bootcamp the software api's have access to the actual hardware not something emulated. It's basically turning your Computer into a PC which nowadays is what it really is under the proprietary operating system. That's why it's fairly easy to run OSX on other computers like my Dell XPS laptop that runs OSX. There's never been support for virtual machines for RealFlight and probably won't be. Too many variables.Running a VM is virtually identical to running Bootcamp in resulting effect. Knife Edge should offer support.
Your problem isn't a RealFlight issue anyways it's a Windows/virtual machine/Apple and most likely a Windows 10 issue so look there for support. Realflight 7.5 works perfectly on systems with Windows 10 when it's not emulated.