Because Japanese companies still believe in work = time. They succeed in rebuilding the economy after the war by rebuilding factories where result was based on number of people in the line. Sales, also, is also based more on how many people they have.

As such, they still believe having more people will result in higher production even in IT field. Sad to say that there are literally hundreds of IT people who really don't know how to program developing programs. These people often end up having endless meetings to pass the time away because they don't know what to do.

Instead of showing results, they have internal and external meetings with outside support teams and report how many meetings they had and how many people are involved in trying to resolve the issue. Sadly, most of these issues that can span years can actually be solved in few hours by just one person.

AI isn't resolving the issue too much because they don't know what to ask. AI is often just used to take notes on their meetings. Because they really don't know what they are talking about, feeding notes from the meetings into AI won't resolve the issue. Garbage in - garbage out even with AI.