So the disassembling confirms that ECU is just not feeding the exhaust with AdBlue/Urea. So what is the advantage for VW in all this?! It does not make your car

So the disassembling confirms that ECU is just not feeding the exhaust with AdBlue/Urea. So what is the advantage for VW in all this?! It does not make your car more powerful, it makes it less eco-friendly, you are just saving money on AdBlue/Urea. They could easily reverse it back, the power will be the same, pollution levels will be okay, only AdBlue/Urea consumption will increase.