From what you describe about Toolset WooCommerce Views, it sounds like that plugin may be telling the site that all pages are in effect the WC shop archive.
If you temporarily switch theme to Trusted (the free version) or another theme such as Twenty Seventeen do you still get the ‘Shop’ title on all pages?
Regarding FontAwesome, a big issue changing to FontAwesome 5 is that thousands of sites currently using the theme would be forced to change many of their icon choices, or be left with icons not appearing correctly as they had already selected.
When you want to add an icon you can still continue to use version 4.7 as that is bundled with the theme. Could you let me know how you are using the icons?