Sure, but is it his decision to make, and if yes - are we ok to respect it?
I'm from a slavic country myself and my name is almost impossible to pronounce correctly in English - but I continue to use it anyway. If he wanted to do that, he could have done it.
My name is "Pavel", and usually ask Americans to put the accent on the second syllable - which is incorrect, but they can't pronounce my name correctly anyway when they put the accent on the first syllable, and it sounds more wrong to me than the way I prefer to have it pronounced.
Apologies to all the other Pavels out there; I've been training everyone I've met to pronounce it wrong. But it's the way I prefer to be addressed.
I'm from a slavic country myself and my name is almost impossible to pronounce correctly in English - but I continue to use it anyway. If he wanted to do that, he could have done it.