An acronym is a kind of initialism that can be pronounced like a word e.g. NASA. Your reasoning for why it can’t be pronounced as a word (“sequel”) depends on it not being an acronym. But, since many people do pronounce it that way, it is, in fact, an acronym and can be pronounced that way.
Your logic is circular
Sorry, I don’t understand
An acronym is a kind of initialism that can be pronounced like a word e.g. NASA. Your reasoning for why it can’t be pronounced as a word (“sequel”) depends on it not being an acronym. But, since many people do pronounce it that way, it is, in fact, an acronym and can be pronounced that way.
Holy shit, I completely forgot about using the term sequel - you are absolutely correct!