Today, one can build amazing stuff for the browser. And, in my very humble opinion, the vast majority of apps should've been WebApps — except for maybe Uber, Google Drive, and games.
I worked in the journalism business, and, in my country, the early 10s were filled with media outlets spending so much of the little money they had to build mobile apps.
I was the sore thumb that rejected such trend.
I knew very well that the quality of most of these apps would be questionable at best. And of course these companies won't be investing regularly in updating their mobile fronts.
And that's exactly what happened: they're stuck with apps that are barely maintained, most of which looking like ancient artifacts from a bygone era. Because that's what they are.