Exactly that. Basically don't play too many orders/charge/syndicate or leaders that take forever to do what they do. Usurper, Calveit (if you're fast), Ardal, Eredin, Adda, Fila, Harald are probably the only one 'safe'.I mean, in all the past seasons, you had to make a custom deck to take advantage of seasonal event.
So there is nothing different about this season.
I like it, although 2 more seconds just to have half a second enough to play/activate 2 cards would be nice.