I cooked the curry2go madras with the tandoori powder in and for me it added something extra, something better. I don't think any cook in any place around this country does things the same way, some may use it some may not. To say that someone is wrong in its self is wrong.
If it works for you then use it.
Julian seems to have learnt many things, which must have taken a long time and a lot of patience. To have the guts/balls to set up an Indian takeaway as a non-Indian must have been very brave.
I've taken and learnt more from watching and listening to the Curry2go videos than I have from anything else.
Think about it, someone has done what secretly we all wish and strive for, and is doing it for a living.