Hi Daniel and welcome. I don't own one but I went back and looked at the photos of it and I would say no to rabbeting. Most jointers are infeed and outfeed beds supported on either dovetailed ways or have a parallelogram mount which in either case puts the frame under the beds. This machine has side plates as part of the bed mounting system which means that you wouldn't be able to hang the main part of your piece over the edge to cut the rabbet. If the side plates are slightly below the bed surfaces they aren't much below so the rabbets would be shallow only.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.