People who knock technical analysis don't usually trade.. they invest... but they usually don't understand the difference. I've been a trader for 15 years... technical analysis only. "Traders" who use fundamental analysis are usually ADD junkies who need their opinions spoon fed to them from someone they "trust" and/or they feed off the false prestige that is associated with the appearance of being able to consume and analyze large quantities of data.
In reality you need a little of both with the balance being more tech for trading more fundies for investing... but those who sling hate usually fit the bill I described above.