Nothing is uncrackable
Certainly true. However some effort has been spent in making the cracking quite difficult. Also, being the whole OS rather than a single application certainly makes it harder.
However, using "nothing is uncrackable" as a rationale for removing the protection doesn't quite sound right to me.
the current scheme is preventing some users buying it
We might lose some potential users with this hw-tied-keyfile for sure, but at least we avoid rampant piracy. It's impossible to please everyone.