I like it but the way it's written it does violate the "muscle over motor" mustache principle. Not only is putting a screw in with a screwdriver considered something that will leave you cursing and not have enough "fun factor" (remember we are talking about people who consider using their muscles so fun and put so little stock in comfort that they are looking to modify their shoes so they can do athletic activities out in the freezing cold), but also "since most shoe screwing is done in the winter, this could be the perfect x-mas gift for that special crazy runner!" so apparently you should buy a cordless drill with a magnetic tip so that you can practice this money-saving idea!
Muscle over motor is about avoiding excessive spending in the name of convenience, such as buying a $2000 riding mower to mow your 1/2 acre suburban yard. It does not, however, mean that you should mow your 10-acre pasture with a manual reel mower!
I guarantee MMM owns a cordless drill. I do too; mine cost $10 brand new on sale.
I think if you read the link you will understand what I'm saying. It is about putting screws into a pair of running shoes, a task that is hardly the equivalent of mowing a 10-acre pasture. (And I believe the principal was a criticism of spending disproportionate
to the amount of energy saved, which was why the MMM post made fun of gas-powered lawnmowers in general, not to mention the silliness of paying to avoid desirable exercise.) And it suggests that you buy a cordless drill for no other reason than to make this five-minute task easier.
Edit to clarify (god I'm a terrible writer): The reason I bring up the disproportionate thing is because it's not about $2000 vs. $10, it's about the fact that if you already have a manual screwdriver, buying a motorized one for the sole purpose of saving yourself like 2 minutes of effort on this project is a waste of money. Hope that makes more sense. Hopefully the writer doesn't really think you should buy it just for this project and is just trying to leave his wife subtle hints that he wants one for christmas.