The log doesn't include all the information needed for all classes (can be used for some). Also the popular parser, because it does what it needs to do to get that extra information, reads from memory, which is against the ToS - which is also why that popular app can also make a radar.. because it reads from memory.
I don't think the majority of the posts here are talking about the txt files, I'm not even sure the majority here are even aware of that option- I think most are talking about "that" famous app.