As others have said, door install was sloppy. But if push gets to shove and the doors aren't reinstalled then you'd want to split the difference on the reveal between the 2 adjacent doors. The trim guy suggesting he'd correct only 1 door by 1/4" speaks volumes for his low quality standard and indifference to customer satisfaction. Are you generaling the job? If not, I'd stop talking to that hack and demand the GC get it fixed...that's his job.
Scott Vroom
I started with absolutely nothing. Now, thanks to years of hard work, careful planning, and perseverance, I find I still have most of it left.