Agree with Magnus and Margo. Marketing BS as usual, that's what they are best at. Their problem is now that they have 1.5 million DNA tests they are running into a lot of computations that are necessary to identify triangulated segments. Hence they don't do it and rather use their proprietary algorithms to keep computing under control.
I hope you guys are all aware that your DNA tests there are by default being sold to Pharma companies, Insurances and whoever is paying them money for it.
If not then go in there and have fun trying to find the option to turn it off ;-) Default should be to opt-in and not opt-out but again, Ancestry is a great company when it comes to Marketing!