You are missing the fact that they were about to air Episode 4 (of 10 episodes) tonight. That means 7 episodes of this season, were
already filmed, edited & were ready for airing. One hour TV shows are actually 42 minutes of actual show. If Lori Loughlin was in each episode 8-9 minutes, the producers have to edit out, they can't have 8-8 minutes of dead air space. They have to pay the writers to do re-writes.
They weren't in the middle of filming where they could have just changed the storyline & kept going without blinking. To do re-shoots's to fill the time, it's not like they just take a cell phone camera and film the show in their backyard. I'm not even sure if Hallmark has their own production studio in Vancouver. (Tyler Perry has his own production studio in Atlanta, in which he was able to film his latest Medea move in a matter of days. He said they just hauled all the equipment around the lot, set up and shot the next scenes.) Whereas, I think most of Hallmark's productions are on location. I read a Hallmark producer say, as there will be a record breaking 34 new Christmas movies premiering this Christmas, (up from 27 last Christmas, on the 2 channels.) That they are already having trouble finding new locations to film at that they haven't used before.
The "When Calls The Heart," production probably has to rent the same locations again. Haul in trucks & trailers of camera, lights, costumes, props, & other equipment. They would have to re-hire the same Director of Photography and lighting guys & costume people, to match scenes re-shot. More than likely, those people and their crews are already in production on other projects.
Add to that, they may have to bring back 5-6 actors & actresses for re-shoots, who also may be scattered around the U.S. & Canada, doing other projects and can't all assemble together during the same days, or during the weeks allotted for re-shoots.
And I bet, if they do re-shoots, they will be taking the money from 1-2 upcoming Christmas movies. Maybe scrapping them this year, so those sets of casts don't get to shoot a movie for this year.
Lori Loughlin: the taker that keeps on taking.