You can cut thicker materials. It’s only the focus that can’t adjust to higher than .433", at this time. They have said that it will change in the future, and be able to make it to .500" (as stated in the specifications).
I cut through 1/2" acrylic without a problem:
EDIT TO CLARIFY: The 1/2" acrylic cuts I did were done with the material sitting on the crumbtray. I did not need to remove the crumbtray to get it to fit/cut.