Something the article completely skips over is that European cities have significantly better and safer pedestrian infrastructure than their US counterparts. American streets are built to prioritize cars and cars alone. Sidewalks are often unmaintained, bumpy, and sometimes missing altogether. Crossings are often unmarked and dangerous. Stop signs and signals are routinely ignored, especially when turning. This is why in countries like Germany pedestrian deaths per mile walked is 8 times lower than the USA (and these numbers continue to move in opposite directions year after year).
Unless you can address this fundamental problem "just walk more" isn't a viable option for transit users.
Unless you can address this fundamental problem "just walk more" isn't a viable option for transit users.