I think they have done a good setup, you start wubuntu straight into Windows VM.
I use Windows Server all the time as VM host because its evaluation licence can be renewed 6 times for every 6 months, you don't pay anything for 3 years and at the end of the 3 years, you reinstall or update to the latest version of Windows server and start over for another 3 years, always for free and legally. I don't need Ubuntu or wubuntu but it's an interesting solution for those who need Windows environment but don't want to enrich MS any further.
One of my pet projects at the moment is a home storage battery. You need a G98 hybrid grid tied inverter and a 48V 400AH LFP battery.
I wonder if there is enough interest to start a thread about it.