Is that possible for a journal to publish an article upon accepting but the Author requested for withdrawal with some reasons?
In US (and probably many other places), unless the authors have signed a copyright transfer agreement, the journal does not have a legal right to publish the article since they do not own the copyright to the material. If the journal required the copyright transfer/assignment as part of submission process, and the authors all signed it, then the journal has the right to publish it. It would be impolite to do so after a request for retraction, but there's a difference between what's polite and what's legal.