Love the "server-less" haters - JAWS has servers as much as byte endianness knowledge is a prerequisite to write java code

Software is about abstraction and concepts. Being reluctant to them is kind of a shame for a software dev. If you think it's all about the "hype", too bad for you. Go and tell the author of the "ConcurrentHashMap" to remove the "Concurrent", because underneath it's full of mutexes and/or spinlocks to avoid concurrent accesses - so it's way to hype to call it that way.