There is simply no way for any unguided, unintelligent account of the unfolding of life to avoid the bane of helpful degradative mutations.
It’s fine to search through random results for an outcome you’re aiming for. Just don’t call it Darwinian evolution.
ID proponents have long predicted that functions would be uncovered for such non-coding DNA.
All of this calls to mind a comment from biologist John Mattick, a critic of the junk DNA paradigm.