Some of it I recognize as being an artefact of the time, when conciseness really mattered. But it's still obnoxious in 2025.
The whole thing reminds me of D&D, which is full of classes & spells that only exist in modern D&D because of One Guy who happened to be at the table with Gygax, who really wanted to be a wuxia guy he saw in a movie, or because he really wanted a spell to be applicable for that one night at the table, and now it's hard-coded into the game.
Yes, one can write obscure perl code and some love perl golfing. In the same way there is an IOCCC which delights in unreadable code, it doesn't mean that the C language should be relegated to the dustbin. The answer is to write readable code, no matter which language is in use.
Hopefully I am paraphrasing you correctly.