Do bear in mind it is still a 'Tech Preview' and so may not be as polished as the RTM version due out later this year.
That's an understatement.
If people do not comprehend what a 'Tech Preview' or 'Beta' is, they should not be using it. And in any event, people should NEVER, EVER use beta software on a machine they actively use... it should always be used on a spare machine or virtual machine.
Microsoft spell this out on the page you linked to:
That's why we recommend that you don't install the preview on your primary home or business PC.
People would be well advised to heed that advice !