Idiot. Using English letters to try to represent sounds they don't normally make. It didn't work for gif (pronounced commonly as gif instead of jif), why would they think it would work for them?
I'll be the first to say that English is a mess. However, there are rules, and this word breaks them.
That "gh" never appears at the beginning of a word, always at the end (as in "enough"). That "ti" is never at the end of a word; it's always inside (as in "nation").
Also I pronounce it with the soft sound because that's what it sounds like in the bloody alphabet.
How do you pronounce the words "Cat celebration?" Is it "Kat kelebration" or "sat selebration?" I'm guessing the latter since that's how C is pronounced in the bloody alphabet?
There actually are rules. They're just complicated because English prefers to preserve the pronunciation of loan words without changing their spelling and English has a ton of loan words. If you ignore them, native English words are fairly consistent.