Earlier quoted context omitted.
It's obviously not convenient for everyone - but no single measure is. I'd also cut down on your walking time by taking a bycicle - you could probably save 20 minutes by that alone. My wife also takes a bike ride to the train station (and she packs quite a few bags on the bike). Nonetheless - yes, there are situations in which cars are still way better.
Unfortunately, it's not possible to bring a bike into a crowded commuter bus and the stretch between home and bus stop can't be efficiently used by bike without commiting several traffic violations. I can, however, do the entire trip by bike (which I often do in summer), using a different route. That takes only slightly longer than the trip via bus.
Or, to own a second bicycle and leave it at the other end.
In London small, folding bicycles serve the same purpose, but they're much more expensive.