stupid and out of touch enough

You have a point overall, but remember that whoever posts this is a person with writing and technology skills, it's not done by a MS-approved committee. The person who wrote it might have free rein over the account, or they might be showing their tweets to an editor first, but one way or another some actual human had to put these sentences together and think about what they meant. So did MS hire and retain someone who has never heard of edging? Possible, but I find it hard to believe.