These kind of shenanigans are exactly why Mr. Karadžić [1] pushed for an orthographic alphabet in Serbia, and why it quickly got adopted by neighbors as well.
Unfortunately, back in the 10th century, the choice of an alphabet was essentially a pure consequence of whom the first ruler of Poland would adopt Christianity from: the Western part of the Church (this was before the official Schism) or the Rus (Ruthenia). The Rus had a liturgy in Old Church Slavonic, and for the liturgical books they adopted an alphabet, the Glagolitic (a predecessor to the Cyrillic), which was more suitable for the phonetics of the language (and, indeed, of Slavic languages in general). Poland adopted the Latin liturgy and the alphabet was part of the “package”.