Interestingly the original script by Cyril and Methodius was called Glagolic and was quite hard (see here https://en.wikipedia.org/wiki/Glagolitic_script). It was not until their scholar Kliment took to simplify the script, and it seems is mostly his decision to make the characters more like the Coptic and Greek. Even though his interpretation of the Glagolic alphabet bears the name of his teacher.
Cyrillic would make it accessible to 2/3rds of Slavic speakers, and would require that other interested parties learn just a few additional characters. It's really not that hard.
A good chunk of those 2/3rds speak English and can wield Latin script (and if not, they should).
Latin script has eaten the world; suggesting Cyrillic for any new language is lunacy.
The number of languages using Cyrillic is vastly smaller than Latin script, and are geographically clustered in areas that belonged to the Soviet Union.
Latin and English script share common ancestry and really are not that different. Likewise people don’t suggest to French and Germans to not use umlauts and accentuation, even though the characters are different.
Sxto es Slovio? -> Що е словйо? Ucxijte Slovio tper! -> Учайте словйо тпер!
or something like it. seems way more Slavic to me... even though the old cyrillic (original if u want) is nothing like the modern cyrillic. For example: https://en.wikipedia.org/wiki/Early_Cyrillic_alphabet#/media...
Interestingly the original script by Cyril and Methodius was called Glagolic and was quite hard (see here https://en.wikipedia.org/wiki/Glagolitic_script). It was not until their scholar Kliment took to simplify the script, and it seems is mostly his decision to make the characters more like the Coptic and Greek. Even though his interpretation of the Glagolic alphabet bears the name of his teacher.
you may be interested in this also https://en.wikipedia.org/wiki/Glagolitic_script