I'm not sure I see where we're disagreeing. I'm not saying that Oracle is not the best choice in some situations. What I do think is that Oracle is not necessarily the right choice in *most* situations. And by "most", I mean "number of installations", not "size of application/number of users/scalability".
MySQL has taken a lot of business away from Oracle in areas where Oracle didn't deserve to be in the first place. With MySQL, those that need a car can buy a car. With Oracle, those same people would get a big truck. Now that Oracle is buying MySQL, those customers that are on the fence of having small databases but needing professional services will be pushed into buying the truck, when what they really needed was the car. How is that good for anyone?
Whatever you think of Monty, there's good reason legislators are worried about the creation of a monopoly in this area.