I have [[de:Hilfe:Suche]] on my watchlist, which is connected with [[d:Q5525084]]. On my watchlist on de.wikipedia I see the two changes from 12:xx UTC, 7 March. But the next change (8:20 UTC, 8 March) is still not on my watchlist. This is now two hours ago, and many other Wikipedia changes are on my watchlist on the top. When this change will eventually appear, it will be somewhere in the middle of a list of changes I already looked at and won't look at again.
This means that I probably won't see that change once it appears on my watchlist (unless I'm really looking for it). The change should appear almost immediatly, otherwise it's useless, at least for users with big watchlists.