The safe harbor section includes the shoot first, ask questions later takedown procedure with unequal standards for claimants and defendants.

Title 3 of the DMCA addressed the issue of unauthorized copying due to loading a program from disk into RAM by explicitly authorizing computer repair technicians to run your OS and other necessary software even without having their own license. Left unaddressed is the more general reality of how bits are almost never actually moved, merely copied.

The anti-circumvention section provides for exemptions, but they only last three years so they're pretty much impossible for a serious business to rely on.