I don't plan to use this, but I think I get why it might work.
(1) Although it's just a hierarchy/tree, which is nothing new, its size and shape is (supposed to be) a sweet spot. There are trade-offs with hierarchy sizes and shapes, so a sweet spot is a plausible idea.
(2) By limiting the size of the tree, you force people all across the organization to share the same parts of it rather than giving them private spaces they control exclusively. This means they are forced to work together on how information is organized. This could encourage there being one coherent idea of how information is organized. Everyone will have to agree on how it's organized, and everyone will be more familiar with how others' stuff is organized.
(3) The numbers are small enough that you can remember them and talk about them. When you ask someone where something is, they can give you the answer directly instead of promising to send you a link. (It's like how you can read an IPv4 address off one screen and go type it into a config file on another computer, whereas unfortunately this is not easy with IPv6.) This increases the odds of success in finding the info.
(1) Although it's just a hierarchy/tree, which is nothing new, its size and shape is (supposed to be) a sweet spot. There are trade-offs with hierarchy sizes and shapes, so a sweet spot is a plausible idea.
(2) By limiting the size of the tree, you force people all across the organization to share the same parts of it rather than giving them private spaces they control exclusively. This means they are forced to work together on how information is organized. This could encourage there being one coherent idea of how information is organized. Everyone will have to agree on how it's organized, and everyone will be more familiar with how others' stuff is organized.
(3) The numbers are small enough that you can remember them and talk about them. When you ask someone where something is, they can give you the answer directly instead of promising to send you a link. (It's like how you can read an IPv4 address off one screen and go type it into a config file on another computer, whereas unfortunately this is not easy with IPv6.) This increases the odds of success in finding the info.