"There is nothing wrong with the information i provide."
Except there is...
"1. skirting board heating contains less water in the system. This small amount of water is heted quicker meaning less energy use by your boiler"
This is incorrect by omission, because the water will have to be heated more often, so the overall energy use by the boiler will be the same (or greater due to more heat losses through walls - see next).
"2. the system is fitted to external walls meaning it keeps them warm, so there is less heat loss"
If the walls are hotter there will certainly be more heat loss (elementary thermodynamic principles) which is why with radiators people put foil behind them to keep the heat in the room rather than in the walls. With skirting systems you can't do this, and the consequence will be hotter walls and higher heat loss through the walls, even more so if the walls don't have high U-values (eg if not cavity filled).
Also, there is nothing special about fins to aid heat exchange. Most radiators have this too, but you are making it sound as if it's some special sort of active device when in fact it's just a passive increasing surface area thing to let the heat out more quickly.