Of course, given enough time you can cut anything. The clever trick here is hiding the temporary re-assembly. They cut the rack when no one is around and there's time (probably in the middle of the night), making the later grab quick and inconspicuous.Damn that's a good one. Didn't know they could cut through the racks.
It wouldn't be easier to steal from me this way. There is no way someone is getting on my bike unless they provide some ID, Collateral, (ID+ Phone) In a public area and with me standing by with my chase vehicle...This seems easier... and more personal:
'Be cautious using Craigslist,' cops say after dirt bike thefts | NJ.com