You is experienced user. For you does not matter have app dwfaults or not.
But for most users it cause problems they setup something and go to complain "nothing worked".
We rename checkbox - "where it is disappear?"
We add feature and describe it in help - "what is that?"
We add defaults - "aaaa! Old version worked, new not worked! Please return all back!"
We oriented on most users. Not for most experienced.
For exact example of defaults: most of users never add region "others" if search of defaults regions fail.
Most of users never try config speedhack if it cause problems with input events in game.
They try other versions or complain over internet.
Because of that we must use defaults suited for most users. Experienced users like you can adjusted app for you in any case but most users never do it.
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added 3 minutes later
You can read thread on this forum about Iruna Online and speedhack. Defaults not worked after update. But possible setup speedhack for work.
You can see what happens.
https://gameguardian.net/forum/topic/14197-gg-cant-use-on-iruna-online-game/