Steam point shop now have old event stuff to buy

Nope, I believe most events had a specific page, however, there were many event specific items that would become unavailable immediately after it ends.
For example the steam summer sale of 2019. This one I remember specifically because I had missed 1 single emoticon and could only purchase it with points after this pointshop update.
Almost every item from very old events can be bought there now, but not all, at least not yet, maybe they will be introduced in time.

When did you buy this? I'm almost 100% sure this wasn't the case until recently (not sure the exact date).