That is canon for ya, should have used INSERT_OTHER_MANUFACTURER_HERE$ /s
But if you look how much manuals get ignored by the customer, it doesn’t make sense to put work into them.
It is much better to let a YouTuber do it, by lending them the product and throw small amount of money against them.
Manuals are just there for legal or certifications requirements these days.
Yet they keep getting larger and less useful. It’s a matter of writing quality more than effort.
When was the last time you met a good technical writer? It’s a vanishing profession.
I dunno, depends on the subject/topic it seems to me. Most of the musical gear I buy nowadays come with manuals that are hundreds of pages long, including schematics, when to use what, tips and tricks, why things are the way they are and more. Even simple instruments like an analog mono bass comes with well-written schematics and lots of explanations. Even the manual for my mixer is 36 pages long, even though almost everything is self-explanatory, and besides that, it even has jokes and stuff in it too!