I think watching the development of driverless cars in the last 15 years has taught a lot of people to be skeptical of 95% solutions. Sometimes you really need that 100% or the solution is practically useless.
The 95% only problem is an issue for cars cuz that last 5% means you die horribly in a head-on collision, or maybe only get a mild concussion but are stuck in a ditch.
But if I can get 95% of my router configs done, 95% of my documentation written, and 95% of a website whipped up I can hand that off to a Sr Engineer/Admin and have them take care of the last bits. As long as the hours, phone number, and location are good a website just needs to be "directionally accurate" and otherwise fairly basic.