To build training center in SharePoint Online, team site or communication site?

KhyatiChothaniI attended SharePoint Fest in Seattle last week and one of the vendors demoed how they created a training site. It went something like this:

• Create a Communication site with design "Topic" named "Training Home".
• Create a Site Content Type with columns: 
  • Training Role
    • End User
    • Site Owner
  • Training Type
    • SharePoint
    • Governance
    • Something else
• On the Communication site in the Pages Library add that Content Type. 
  • Create a couple of views. One that groups by Role and one that groups by Training type. 
• On the home page of the Training Home site, add "List" web part for the Pages library with view "by role". Add another List web part with view "by training". 
• Then add new Page, and create training page as you would like them to be formatted. Then save drop-down > save as template. This will allow you to recreate your pages easily with new training material.
• Add other web parts such as: List Properties, forms, stream, and highlighted content (this will show recommended content that has same "managed property" <-- this is the searchable columns). 
• You could save the above Communication site as a template and then create a Hub site and add several training sites to it. And a the Communication site to site designs for training. Users can instantly create a new training site with the template you created. So you don't have to rebuild a new site every time you have new training.