100% agreed, but I would add that Goomboo said that in January 2012, a time when the market was a lot smaller and different.
Yes, you're right - the situation may be a bit different now. But I still think that many movements on the minute time scale is caused by single buyers/sellers, and it takes some time for a proper trend to form. With the current trading fees at MtGox, it seems hard to make a profit on a "micro-trading".