Strange conceptions?

Yes. That’s humor.

Tsunami doesn’t start with a T sound, It’s just a strange artifact of the romanization of the Japanese sounds.

Yes, and English speakers have an established collective inconsistency regarding whether to pronounce loanwords anywhere on the spectrum from (somewhat) faithfully to the original language to transcribed to entirely reinterpreted with English pronouciation norms. To declare that the “t” in that word is silent overstates the situation. At most, it’s optional.

I pronounce those cities as two syllables, although it doesn’t bother me when others don’t. I also pronounce “Mangione” as three, even though I don’t overdo it on the Italian vowels.