If memory serve me well, WPF and Silverlight were brought around 2007-2008 by microsoft. Angular was released around 2009. Spring Framework in 2002. Misko was Sun employee and worked with Spring a lot and mentioned it a lot. I did not find any reference to silverlight and or wpf in his talks/posts so far.
Next - I am not saying that idea of applying server-side mvc patterns as-is is unique, it is certainly not - your example of wpf and silverlight are good examples. Also, probably, reason why these did not stick well outside corporate environment, where decisions are made by managers and not people actually having to deal with it.
If you have solid source explaining origin of angular - i will be happy to be corrected, but from everything i read so far to understand better motivation behind sometimes very questionable decisions I always find similarities between sun/java/spring.
Next - I am not saying that idea of applying server-side mvc patterns as-is is unique, it is certainly not - your example of wpf and silverlight are good examples. Also, probably, reason why these did not stick well outside corporate environment, where decisions are made by managers and not people actually having to deal with it.
If you have solid source explaining origin of angular - i will be happy to be corrected, but from everything i read so far to understand better motivation behind sometimes very questionable decisions I always find similarities between sun/java/spring.