Aks Walia

Hi I've talked to my friend who owns operates and works in an Apple Certified Repair Store and he explained the following to me
 
in Short - Apple launched the iMac Pro too early 
 
Apple doesn't repair things when serviced by an unauthorised technician because if their first-party repair fails or anything happens after their repair it damages the reputation and certification of their repair service which is why they redirect you to a 3rd party (who is certified) in these types of situations.
 
Apple had released this pro certification and it has indeed existed since December and the parts finally became available in March (Late since the product launched last year)
 
The problem lies in that few 3rd parties will go through the effort of Pro certification when they may not ever need to use as if you put yourself in their shoes, iMac Pro's aren't a common computer of choice and very few people would buy it, so the chances of a potential customer are already very slim, espeacilly once you realise this is an all in one which would sit in the same spot and be moved at most once or twice a year, and given the type of people who would buy this product (wealthy) they would not violate apple's policy and just get it repaired through Apple if they did happen to damage the iMac Pro.
In summary, the chances of someone breaking an iMac Pro and then be needing or wanting to go to a 3rd party and then becoming a potential customer to a single 3rd party is virtually none. I wouldn't be surprised if Linus is the only person in the world. 
Thus why the hell would the 3rd party go through the time and effort for pro certification.
Luckily for you Linus you can make a pr debacle and I am sure Apple would bend down or a 3rd party would go through the effort to do pro certification for you given your social position.
Worst Case scenario just sell the iMac Pro with a Linus and team members card and signature on the iMac Pro and you'd be able to get your money back 
Problem Solved
 
This is still pretty ridiculous on Apple's part here with their "holier than thou" attitude to everything you should really create a PR debacle and force their hand it could really make things easier in the future 
 
 

LTT at the most broke 3 parts the Power Supply, The Screen and possibly the board. The board and power supply may not be even broken and even if they are that is far from the entire machine my friend