Motorized Railway Confusion and Delay

Anyone have a clue to why TM2 didn't come to Japan and Plarail stayed? Also, why did some countries get TM replaced by motorized railway?

Perhaps a Shock to the system. Many Japanese toy brands have been around for years. I believe their mentality is that they want to make their passion project, while other countries' toy production is purely for whats "hip" and what'll sell.