You criticize them for not handling it better, but in the next sentence you say maybe they had not other choice. I find it interesting your first instinct is to criticize the police and not the fool who caused it all. This is assuming that the OP accurately explained the situation. Eye witness accounts in chaotic or traumatic events are often wildly inaccurate. Could it be that he did something minor and was going to be arrested, but then he resisted arrest? At that point it doesn't matter if it's the parking lot to Walmart or the MK, the police are trained to handle a resisting suspect the same. Their is not a special Disney use of force protocol. The use of a Taser is now preferred over the use of physical compulsion. The Taser is far less likely to cause injury (to the suspect or officer)than an officer laying hands on a suspect.
Actually it's not weird at all. The more officers, the more intimidating. The more intimidated they make the suspect, the less likely they are to resist. Is there a recommended maximum or minimum number of officers you would suggest sending? That's assuming you know what he was being arrested for in the first place?
I'm going to agree with you. I can almost guarantee they tried to do it quietly. However, I do think Disney played some part in it. It sounds like he did something bad to warrant "the special attention" and Disney security or cast members alerted the deputies.