Air Traffic Services are just that - a service. Pilots being the customer.
Obeying ATC instructions does not absolve you from the responsibility to maintain safe flight. ATC can and do sometimes get it wrong. If they want to send you into IMC and you don't have a rating then you need to tell them, not blindly follow their instructions.
However, reading that report two things concerned me. 1/ the pilot flew into cloud even though he was not Instrument Rated. Why? and 2/ did the pilot not assess the local weather conditions himself prior to taking off?
I have flown in Turkey and believe me, if you were to blindly follow ATC instructions, even when under full ATC control, you probably will end up in the side of a mountain (I have had such an instruction!!).