One of our recent submission has been suggested to be revised by a journal (CS). However, we could not at first believe that we have to address the comments or points raised by 11 reviewers plus the editor's comments. The comments are very diverse and conflicting.
Is it quite difficult to address all the comments and satisfy all the reviewers. Everyone is a human being, even us.
How and why should a paper be reviewed by so many reviewers? Now we are not in a situation to withdraw the paper and probably it is quite difficult to address all the comments because of computational issues.
For the how question, I have this possible answer: Yes, the editor might have sent reviewer invitation to more than required number of reviewers; and to the surprise, all accepted it.