I think people might have been cool with the choice of three if it had felt like we accomplished something. The last fire-fight was crazy and it took a lot for me to get through it alive. We defeated a Reaper in the process, but it didn't feel like we got the boss battle we were expecting. If we had gotten the choices as a reward for destroying Super Reaper or some shit, some people wouldn't be so annoyed right now.
Regardless, there are a ton of unhappy people who are unhappy for very different reasons. It makes me wonder if anyone during the project raised there hand and asked, "This isn't the real ending...is it?"