Capt John wrote:
Because most people don't make use of this function. When anchored in
deep water, because of line stretch and movement of the boat due to
wind and tide changes, this was a useless function for many people.

It is certainly NOT useless to me! And it is a feature that was more
functional on the older models than the new ones. A simple software
change could fix that. The anchor drag limit can easily be adjusted for
whatever water depth, and scope you choose. That doesn't make it
useless by any means.