Stories are temporary by design
The biggest source of confusion with story viewers is that stories disappear naturally. If a public story was available earlier and now no longer appears, expiry is often a more likely explanation than a technical fault.
That makes this page most useful for quick checks: is a story visible right now, is the account still public, and does the result fit the normal story window rather than suggesting something is broken?
A lightweight browser check can be enough
Not every public-content lookup needs the full Instagram app flow. Sometimes the user only wants to confirm whether a public account currently has story activity, whether a recent announcement is still visible, or whether a story likely expired already.
In those narrow cases, a browser-based page like this can be more practical because it reduces account switching, app state, and other unrelated distractions.