Imagine how less useful Google will be if it only show page titles?
Lots of website have misleading title. Without a snippet in search result, I need to open each and every links on the search page.
If there were no snippet in Google search result page, then quickly it would become a feature of all web browser to display such snippet of each link on hover, though.
meta name=”description” content=”why not just go back to how it used to be"