I suspect it's an audit trail. You see the set of tests there. One issue is that I think this conflicts with the recommended Component/index.js or Component.js not Component/Component.js

I find you do want to find components through your editor (e.g. <cmd>+p in vs code) Finding lots of index.js doesn't help. You will in effect create a Component/Component.js but also use Component/index.js to export the Component.js

Also if you use Jest this sort of falls apart.