I think Ford is increasing the intervals to compete with other manufacturers. 5000 km's or 3 months was too much, even for conventional dyno oil. I've always done mine every 10,000 km's with full synthetic and a Motorcraft or Wix premium filter. That's likely too often as well, but I always wait for the mileage to hit 10,000 km's regardless of the amount of time that passes. Synthetic doesn't break down like conventional oil, so time is of little concern.
I'm sure the oil companies are happy to hear about this (sarcasm intended). IMO, it only put money in the pockets of the dealerships and oil companies. Like I mentioned, the oil change intervals were expected far too often and this is/was a major waste of coin for the consumer.