"This includes the iPhone 5, 5c, and older, the standard version of the iPad (so not the Air or the Pro), and the first iPad mini."

This implies there is still a "standard" iPad for sale. In fact, the iPad Air was simply the successor to the iPad 4, and the iPad Pro was the successor to the iPad Air 2. There is no "standard iPad" on sale anymore, and there hasn't been for years.

This won't directly affect any device Apple has sold in some time. The iPhone 5C is the last iPhone they released that was 32bit, and was likely to be dropped for software updates with the release of iOS 11 anyway.

In short, there's nothing to worry about, except if you want to run an app that hasn't been updated in 2+ years