Please understand that "Prophet" is understood to mean "any person that can observe phenomena over time and hazards a guess to what will happen next".

No, that's not what it means. "Prophet" means "high-status person whose teachings are worshiped as part of a religion". Attempting to broaden this term has status implications, because it's also a status threshold; lowering that threshold may be perceived as an attack on the small number of people to whom the term "prophet" is currently applied. If you want to discuss a broader meaning, it would be better to invent a new term, rather than impinge on religious terminology.