Yes, I think so. More widespread algorithms have been far more thoroughly studied; they've been studied for longer and stood the test of time. Their weaknesses,

Yes, I think so. More widespread algorithms have been far more thoroughly studied; they've been studied for longer and stood the test of time. Their weaknesses, and how to counter them, are better understood. They're busted by general-purpose large scale quantum computers, though, if those ever happen. Combining their strengths sounds like the best approach where data is very sensitive and the overhead is acceptable.