Still an exceedingly demanding application and with actual extended drain intervals, the latter being the topic of discussion.
You made no statement as to the requirement being compact cars in stop & go traffic in the post I replied to. Shifting the goal posts around because the responses don't align with the conclusion you've already drawn isn't a great way to foster productive dialogue.
There are plenty of fleets that run obscene mileage such as LEO, taxi and limo applications. The common thread being obscene amounts of mileage able to be accrued over a reasonable duration. Couriers are another great example, that's what the million mile Ford was doing IIRC. Average Joe isn't going to rack up 500,000 miles on his Chevy Cruze driving 15,000 miles a year, it would take him 33 years and the odds of the vehicle being taken out by an accident, rusting out or traded before then are extremely high.
My Expedition was in the "rusting out" category, the body was going on it with ~200,000 miles on the drivetrain, which was still all original and extremely healthy. I've taken a couple of vehicles to that mileage, all Ford products, all on ~7,500 to 9,500 mile change intervals, almost exclusively on Mobil 1. I wouldn't necessarily call those extended drains, but they were longer than what was mandated by the OEM at the time.
I wouldn't, in most cases, consider the OEM drain intervals "extended drains" per what the OP was opining on. My wife's truck ticks off the OLM at somewhere around 10,000 to 12,000Km (6,200 to 7,500 miles) depending on the conditions. I definitely wouldn't consider that a long drain interval compared to what some of the Euro marques have called for and it's on the low end of what I changed the Expedition oil at.