I've looked into Syeds material and while I'm skeptical about using tomato paste for my specific needs, namely re-creating my favourite punjabi restaurant dishes*, I have no doubt that this will produce tasty curries. Cooking up your tomato puree with ginger-garlic is something that quite few restaurants do and worth trying out.
* In most of the videos I've seen, the chefs use base gravy plus red gravy plus sometimes something that some chefs call "onion sauce" (instead of "onion gravy"), which I suspect to be onion-tomato-paste.