In a way, this seems similar to the "web framework of the month" that everyone wrestled with for a while. There's a new tool! You're obsolete if you don't switch now!!!!!

Meanwhile, some of us were over here, building embedded systems with C and C++. The big switch was from Green Hills or VxWorks to embedded Linux. The time scale was more "OS of the decade". There's hype and fads, and there's stuff that lasts.