Uxyzapenje, it applies only to "servebots". The thing is, when a servebot breaks someone 3 times, its equivalent to a double bagel. Being unable to defeat a servebot in 2 tiebreaks is a fail in itself, because the servebot is inferior in his groundstrokes.
The only non double bagel Karlovic can feed is 7-6 7-5, and even that is a fail.
Yes, 7-6 7-6 is a double bagel bcs they "can't" break. But I don't think any score should be called that.... Only Servebot vs Servebot 7-6 7-6 is a double bagel IMO