Follow button not useful when using subsections

Dear Zendesk Team

The "Follow" button on the sections is not useful when using subsections because it doesn't take new articles in the subsections ! 

For example, in your own Help Center, if I follow the section : 

https://support.zendesk.com/hc/en-us/sections/360004108393-Using-Support-ticketing-system

I'm never notified because all articles are published into subcategories !

It is very boring to subscribe to all the sub-sections and incomprehensible to the customers.
Could you analyse this request?

 

Thanks