It’s rather common to offer such variation even above the fold on pages or within sections of items users encounter. This type of random sort or shuffle (upon load or interaction) of filterable content allows for varied exposure of the items. Which can be pertinent given the known metrics concerning the lack of duration people spend on pages / sites.
This can be especially true on smaller or midsize sites with filterable e-commerce items, images, art, blog posts, general data, etc. Though not really comparative to larger sites and corporate sites that instead implement full fledged ranking algorithms for items. So for common Blocs sites it could certainly be beneficial, especially when many items are present and don’t fit into the users view.
As an example Isotope.js added it in early 2016 but such was even happening nearly a decade before that. This is also all quite easy in Vanilla JS with no library. Given this Bric is $50, such a simple user request for random sort / filter could be added as a “user definable option” for those who want such a feature.
My additional personal feelings are that these types of Brics / Features should be included in “Blocs Plus” and instead offered as “A la carte” for non Plus users to buy essentially allowing up-selling in both regards (the Bric or to Plus). This would make the Blocs Plus version itself more “Premium” instead of selling single Brics for the same cost of the upgrade to “Blocs Plus” or the cost of “Blocs for iPad”. But that is just my opinion obviously. 