Not trying to start a flame war but JSP is getting older and there is not a lot of updates coming out. Java HAS to remain relevant and that means companies might have to make moves that are sometimes unpopular with me and you. The question would be is the technology that replaces JSP an improvement?
I was a huge JSP and servlet fan. Took me a while to get to grips with JSF, Facelets and the new kids on the block. Are they a improvement? Well in a lot of ways they do simplify development. I found that I am spending less time on boiler plate code in some instances. However there are some nuisances I don't like. Would I use JSF,Facelets for everything? Certainly not. I use the best tool for the job. I have no favourites, no scared cows only techniques and tools to solve problems.
As a developer of any kind sticking to one technology and one way of doing things severely limit your toolbox. All languages, frameworks and techniques have their place and having the ability to use a vast array of these techniques,tools and frameworks will make you a Coding Monkey Ninja or Evil Mad Scientist.
Keep a open mind and learn the new things. No I don't support what Oracle has done, I went postal when I heard they are dropping Glassfish support. I loved that server it really got me into JEE in a big way. However instead of standing on a soap box trying to change the course of a multi million dollar corporate machine, I switched to WildFly. I cant change their minds but I certainly wont change to their paid product.
Having said that JSP is still relevant and will be around for a long time. Oracle has to remain ahead of the curve to ensure that I don't end up coding in .Net (shudder), not that .Net is bad I just love the ease of development in the Java world and the choices of technologies is just far beyond than being tied into a M$ architecture. So yes Oracle will have my grudging support at times.
We all need to keep on supporting the open source initiatives such as Apache(Camel in particular is a passion of mine), PrimeFaces for example and nurture the creative can do spirit of people that are not bound by bean counter making decisions.
Anyways my 2c.