"Debugging is twice as hard as writing the program, so if you write the program as cleverly as you can, by definition, you won't be clever enough to debug it." - Kernighan's law

(In reality I think that many smarter languages make debugging easier, not harder, but the point stands that the most interesting or fun solution isn't necessarily the best solution. A good, stable project often needs non-sexy infrastructure, and no language can completely abstract that out.)