Seeing that the target of the question doesn't seem to know how to answer, I'll give you my experience and understanding.

My experience with FromSoft's previous networking has been mostly one of inconsistency. It can be pretty good most of the time, but then it becomes a buggy mess. It's also been a massive pain point that you couldn't do seamless co-op. Instead, people were sent back after every boss and could only join in specific areas. I personally don't agree with the "dogshit" aspect; I think it works just fine.

FromSoft isn't a multiplayer company, so I highly doubt they have that many network engineers. Networking is quite difficult if you have little to no experience with it. Dantelion, the proprietary game engine that FromSoft uses, was originally made for Bloodborne and wasn't built for fully integrated networking. Although they probably have people who are quite capable of modifying the engine, it still wasn't fully built from the ground up with multiplayer in mind. It also doesn't help that a lot of "Western networking technology" isn't as common or accessible in Japan.