I was making commentary about the niche/independent nature of these online retailers (another example: graszaaddirect.nl, specialized in grass seeds), not that e-commerce itself survived the bubble.
Having a dense country where you reach any opposite end in <3 hours is probably a major factor. You don't really care where it's coming from (sometimes it's Germany) as delivery time is the same. That would not be the case for the US, you'd require a web of distributors.
All these things are still e-tail here, too. We didn't go back to B&M.