In reply to Joris van Montfort.

From a user-experience perspective, it would be nice. On the block level, it would be just a single icon, which essentially lives in a box. I envision all sorts of design elements, such as text/background colors, alignments, size, shadows, etc. Sure, users could recreate much of this with something like dropping an icon in a Paragraph block and adjusting its block options. However, getting from Point A to Point B makes sense with a dedicated block in some cases.