Hi MM, yep get that garlic real brown if you want the smoky BIR flavour, just don't burn it as there is a big difference.
Like Chewy said its old school BIR, not many places have or take the time for such extravagance now due to speed and overbooking I guess.
I have been in only a few BIR that take the time to put a good tarka on some of there main dishes, it really stands out from the crowd.
Thanks.