I would be in no way surprised to discover that 90% of these bots are run by the NSA and other government, military/industrial and intelligence organizations doing organized griefing campaigns.
They evaluated the release of a major genre title like this as a high profile target, something a large percentage of a significant demographic (the voting age youth demographic) had expressed an interest in, something they looked forward to, something that fell under their jurisdiction to monitor under the new era of internet surveillance, and assigned a contingent of techno-goons to perpetrate these bot campaigns for the specific purpose of causing frustration, disengagement, and demoralization, to intentionally sabotage the community.
This authoritarian government has already made it clear they consider gaming in the same genre as drug use; something for degenerates and deadbeats, and people with low socioeconomic priority.
What better way to stick it to your enemy than to poison something they considered sacred? It would be like, seeing the trend in several states in America to decriminalize marijuana, hiring a covert team of scientists to genetically re-ingineering a popular strain to artificially induce schizophrenia, just to spite people you didn't personally agree with or find to be of immediate financial value to some draconian capitalist agenda.
One last volley in the war on drugs. One more slap in the face of the "lost generation," to punish those "useless gamers" not gobbling up our lifestyle products.
Hyperbole aside, I wouldn't put it past them.