I believe you can easily find many illogical phenomena in Greek as well if care to search.
In Greeks about the 30% of linguistics issues cannot be explained (i.e. you have just one letter sound like и we have five: ι, υ, ει, οι, η). However the 100% can be explained if you have knowledge of ancient Greeks. Greek language is the only one that the mathematical system of numbers, the musical system of notes and linguistic system of letters are united (I don't bother to explain). What matters that even the most insignificant detail has a specific rule explaining it (the only language in the word that has this privilege). Unfortunately very few people possess this knowledge usually those who studied ancient Greeks (in there majority Greeks, Cypriots, Germans and English). I don't encourage anyone to learn Greek ... if I had a choice I would have never learned Greek

P.S. Advice from a moderate Greek: Never insult the Greek language or history in front of a Greek or a Cypriot ... you have a big probability to be insulted back. This is just a cultural knowledge in case ...