Even though you may never get an answer you like, you deserve one! Few, if any, that control development show up here. Instead, it is primarily users trying to help other users.
My view (and guess) is that Adobe targets the Elements products at simplicity. The last two annual updates included "streamlining" for faster installation and reduced use of disc space. Adding an Encoder would move towards Premiere Pro territory and, in my view, is not at all likely to be included in the Elements suit.
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