yes, frank darabont had a master plan to open season 2 with a whole flashback episode to the begininng of the zombie apocalypse, where tanks would be driving around, helicopters flying around, and zombies were being mowed down with machine guns and shit until they eventually overran the military personnel. it would have been like the street in atlanta that rick got stuck in the tank in, it would have showed us what happened. that makes it seem like he had epic ideas but got fired and then the show went to shit.
but frank darabont still developed the first half of season 2 before he got fired. so hes still responsible for basically ruining what could have been an epic show. yes, budget constraints and all that were forced, which is part of why he got fired, he was overly ambitious and wanted to spend millions of dollars developing episodes that werent even central to the main story. but he was still responsible for the "narrative-driven emotional bullshit", and id put any amount of money that the second half of season 2, which lacks his control, will be much much better than the shit he tried to pull with the beginning of season 2