Yes I completely agree with you that Nokia 3 won't be able to handle the standard Oreo. I also think that standard Oreo will only degrade the battery life and performance on Nokia 3. To be honest I personally think manufacturer are hesitated to try the Oreo Go Edition(I may be completely wrong on this) since it is first of its kind. I think so because there is no single Go Edition device launched till date and I also think the development of Oreo Go Edition is not complete yet. Now Nokia has a chance to smarten up and be the first of the manufacturers to run the Oreo Go Edition on Nokia 3. But I don't know why Nokia is trying to update Nokia 3 to standard Oreo and I don't know why they believe that it will make the performance of the phone better.