Remember that there are no "true" LED TVs out right now. The difference in power consumption is between using a florescent backlight and an LED backlight. Both displays use an LCD panel to produce colours.
This will become immensely confusing once they actually start producing displays that use LEDs to produce the image.
Yes if you want to be pedant about it, but no one sells flat screens as CCFL TVs do they?
For the general public who wil go to the manufacturer websites they will be presented with TVs divide into LED, LCD, Plasma, OLED, etc etc. So using a generally accepted term is correct. It is about communicating effectively.
And AFAIK they do sell "true" LED displays already but for industrial/commercial use for outdoors. Very visible during the day and blinding at night.
Looking online a no-name 16-inch LED TV sells for $80 inclusive of 12% VAT. It can play media plugged into a USB port. I expect it to work for 6 months after which you will need to buy a new one.
It's good to see that you're aware of the difference, a significant majority of the people I talk to are completely unaware. In my opinion it basically amounts to false advertising.