This food wasn't offered to everyone on the train, the diners were picked in advance, just 2 of these people were random, and these diners and servers took up space that regular commuters use.
How would you feel, standing there wishing you had a seat wondering why these people were stuffing their faces with food and none of it was being offered to you?
If they want to do this sort of thing in public that is fine, but don't use public space that will cause an inconvenience for others.

"Subway trains are for riding, not for holding parties," said Charles F. Seaton from the MTA.
He's just jealous he didn't get any of the food. He is also pissed he didn't know anything about it, had he known he would have charged more for the ride.

Regardless is they were taking up seats, they paid for the seats like everyone else. The seat on the train wasn't free. Regardless if they were eating or not, whoever was standing would still be standing because those people paid their fare

Only in NY. I love it. The MTA had to know as they were bringing in what could have been bombs. I only hope they sanitized the car before they started serving food. Remember the lady that recently threw spagetti or something on another passenger over having food on the train. I miss NYC dearly, God Bless America.