Bloom is not a skill. You cannot anticipate where exactly your shot is going to land within the blooming circle. It is somewhat a measurement of luck of the draw. Without bloom, when you aim your reticle over the opponent's head and fired, the bullet went where it was intended to go. Not the randomized spray that bloom provides you with.
Also, how is a completely inexperienced player supposed to spam you, when if they are so inexperienced, supposed to keep their reticle at you when you're a moving target? Correct me if I'm wrong, but "inexperienced" and "noob" and "novice", all mean not very good at whatever they are doing. So... If you claim some noob, novice, or inexperienced player can just come up and fire 5 shots hitting their mark every time, I'm missing your point. Obviously if they can do that and catch you off guard, then they are simply better than you are.