lear60
Keep in mind that they discovered the gear won't come down, even by means of alternate extension, and they will be landing on the belly just a few minutes prior to landing, and not back over the U.S.
If you would have chosen to divert, that is fine, you choice and call. The fact they chose to continue, is fine just as well, and in compliance with their SOPs, and in my humble opinion was a good and calculated call, given the knowledge they seemed to have at the time.