I'm sorry, but you're misinformed. None of those logs contain anything but combat data of the player and party members. It's not hard to decipher the symbols you don't personally understand, since those are referred to as 'Calls'. Abrievated terms and language for quick and easy navigation for the software.
As for deciphering it, it takes a few seconds with a simple plugin to Notepad++. It's just language code, not hard to figure out.
But, as I had my friend check, you cannot access these logs on PS4, the console doesn't let you delve that deep into the file system, for them to know this. PC users though, can freely and easily check the logs, even without parsing software.