I took GPs comment to mean exactly that: The average user wouldn't bother even if they did have the vids available. Apple probably doesn't because if they tried, people would think that they should be able to repair the phones themselves, and then get torqued off at Apple when they failed.
Apple that was once a long time ago had a good rep with the DIY community. Now you hear about them filing lawsuits against repair shops, refusing to sell parts to anyone, slowing down older phones so you have to buy new ones, gluing keyboards to batteries and charging $200 to replace a laptop battery.
Think about this what brands of car are there that aren't sold to DIYers. Tesla? We are in a long term trend whereby more and more things are non repairable trash that last less and less for no real good reason. Its irresponsible, hostile, and stupid. Can you imagine if we had cars that after 3-5 years died and had to be scrapped and we dismissed the matter as foo brand isn't for DIYERS that think you ought to be able to fix your car.
DIY community - yes, but they are not a target market for apple at all.