Yep,
there's no reason a kit needs to be static. Tearing it down to make it better is a continuing process. Smaller, lighter more comprehensive.

I consider matches to be a basic of any kit. If I go down in the water they aren't much good, but they're small, light and cheap so it's no big deal. If I go down overland they could be a major asset.

Fishing gear? Only reason they're needed at all for fishing is a long term event, but can you use them for things other than fishing?

This is just one reason to use the items in your kit and not to treat it as emergency only gear. People hesitate to declare an emergency and waste precious seconds. Treat it as an EDC accessories tool kit.