Why not? Microsoft supports their Windows for 10 years. Microsoft supported Windows XP almost 12 years.
Now Apple abaonding their OS support right after new OS release.
And who to determine something is not of vaule. If iPad 2 still works for someone, it has vaule. Apple is proud of their customer service and how long they support their devices, that is base on the condition one must run their newest OS, even if that OS runs like crap.
Microsoft, Apple and others look at how many people are using those devices to justify continuing support. The number of people still using a Windows XP device is far far higher than an iPad 2. It doesn't make sense to invest the resources in something only a very small number of people would benefit from.
Complain about it all you like. It won't change things.