Probably because back in the day, several cars got toasted after copping ecutek reflashes, and before you say thats a load of rubbish, i saw a number of these cars, first hand with my very eyes, so its not rubbish..
also probably because ecutek was, and still is a rip off of a product for what you get, compared to being able to buy a replacement
ecu for the same or less money, eg a power fc..
and the main one, probably because ecutek stage 1 and 2, is only a reflash, nothing else, they don't sit down and tune the
ecu for you, unless you fork out even MORE money for a tek3, and i have big issues with people just slapping a reflash on as not every car is identical, they are all different, and different mods, cause different characteristics, thus rendering a straight out reflash without a tune pointless..
it smacks of the power chip days when martin donnon raped dumb people for eeproms that did more harm than good