Just doubling the options gives you 4 times the workload.
Making the answers less extreme would already help a lot. There is just no need for a "very angry" and a "very nice" answer for each and every topic. Why not making a "nice" and a "not so nice" answer? Or an "angry" and "less angry" answer for another dialogue...
Nobody says that if you are limited to two answers/options (because of time/workload constraints) you had to choose the two most extreme positions. That's just bad writing/design imo, black and white as I've said.