I don't use any Patak's either, I find the tandoori paste too salty with a nasty aftertaste. They've definetly become more popular in france, the Sri lanki shops around gare du nord seem to sell the whole range, in catering sizes too.
I keep meaning to make the Elachi nis, but can't be bothered paying for 3 different jars that I never use.
I have absolutely no idea or interest if this make my food more or less Bir, I just cook to my taste (and the last couple of time I've bought paste I've ended up throwing it away).