You can always also implement any 3rd party plugin that you desire.
As one example I remember Andy @apswoodwork, whom is not a web person but instead a talented woodworker who created and manages his own site to showcase his woodwork creations. He implemented JuiceBox for his gallery pages.
You can also search about via Google and find many plugins, libraries, which implement the use of thumbnails like your L.L.Bean example. Thumbnail based sliders, galleries, etc., abound as open-source libraries and plugins with many alternatives and options available.
Maybe not as easy as using a prebuilt Bric for some, but certainly doable in Blocs via the:
Like Andy’s above example demonstrates.
Blocs 3 may also make it easier to implement plugins and libraries, etc.,