Came from the unfolded hieroglyph

Most texts were still written in scriptura continua, that is without any separation between words. However, the Greeks were sporadically using punctuation marks consisting of vertically arranged dots—usually two (dicolon) or three (tricolon)—in around the 5th century BC as an aid in the oral delivery of texts. Greek playwrights such as Euripides and Aristophanes used symbols to distinguish the ends of phrases in written drama: this essentially helped the play's cast to know when to pause. After 200 BC, the Greeks used Aristophanes of Byzantium's system (called théseis) of a single dot (punctus) placed at varying heights to mark up speeches at rhetorical divisions:

Punctuation was well established in Egypt. It is how they went from pictograph to phrase. Phoenicians would have kept the most common marks, like end of sentence or set separators, just as they would have kept word order.  They would have kept the modifiers for plural.

Themes in communication technology:

Trade and communication.
Communication tech and nation building.
Religion, law and philosophy.

In the last, it was Aquinas who saw communications as the source of god's truth. It is a redundancy minimization process,  light, at constant steps, adjusting the knowledge in some local.  In law, we can prove beyond a shadow of doubt that the order of phrasing must have meaning. Leading to logic. The court system was established back then. No matter time and place, the words: To preserved a regulated militia'  will be  definitive  because it is the first phrase in the second member of an ordered list of rights. It will always intrude.

In the written is is about keeping grammar minimized to a  low rank encoder. Then the options restrained enough to provide information entropy.

Find the partition between expressive and minimized, because it was about the cost of translation. Writing technology was a conserved resource.

When Egypt defeated the sea people, heir was an era of peaceful seas and the dawn of the iron age, the era of big shipping. An informal alliance ot the Phoenicians wold have spread the hieroglyph concept widely.  However, it is likely that 'Pidgeon hieroglyph' was more common in that region, a common method of reading Egyptian, and that would have been valuable. Phoenicians carried out the idea farther, but it was probably a teaching technique.