Both Mrs Bakewell’s fourteen-year-old son and the couple of guys setting up the large company’s microsite are both downstream of what’s in among the larger web

Both Mrs Bakewell’s fourteen-year-old son and the couple of guys setting up the large company’s microsite are both downstream of what’s in among the larger web dev community, they’re just lagging behind it by several years (possibly; I wouldn’t be so sure about the fourteen-year-old). There are of course platforms (it’s always platforms) that have survived losing their in-ness and are still in widespread use (even PHP, arguably), but those are generally described as proven, reliable, stable, well-supported, and so on. I’m not convinced that at this point Wordpress still has that road open to it, instead of only the usual slow decay of widely-deployed software, but either way I don’t think that a transition to a legacy status is a nonevent. It just takes some time to show up in the deployment statistics.