It's not that far off; the Greeks have Xerxes where you might expect Xiarsa from the cuneiform. Greek has no "sh" sound, so you can't blame them for not using it.
If it consoles you I feel the same, daily, with how anglophones refuse to write even basic Italian, Spanish, French, or Portuguese sentences.
No matter how hard me and other non-anglophones work to pronounce and spell English words correctly, double checking and investing money in getting the right pronunciation.
