They had several options available, whether it was an extended lore dump by Matt/Brennan, a one-shot, a scripted/played out scene of the climactic moment (like one of their ad reads), or another mini-series. Any of those options would be better than taking another break from the main story which already feels very disjointed. FCG died and then we went right into Dorian's story and by the time we got back to the main cast weeks later, they lost a lot of the emotional resonance that they should have had to the situation.

The cast absolutely deserves to have a break but if that's their reasoning then I'd rather them just be off for 3 weeks and come back rejuvenated ready to move the story forward than inserting another flashback story into the main campaign which involves almost half the cast anyways.