Thank you for playing, I am glad you found it enjoyable :)
Its not that we thought it would make the game too easy, we just thought of jumping and shooting way too late into development (We thought about it like a few days before the jam ended). We had a lot of other stuff to prioritize, like the music and the sound effects (I started composing the music 2 days before the jam ended! lol)
If we had more time, I would have definitely added the jumping and shooting mechanic :)