I agree with you. But repetitive practice can be dangerous. I would way, practice with variety, with creativity and imagination. Try to avoid repeting always the same things. Try different rythms on the same piece of music, try other movements, other keys, add some notes, quit some notes, and then back to the original piece. The idea is to "¿ingrain?" the piece on you, and that means memorizing, acquiring technique, contro, musicality; if you repeat the same way the same piece again, and again hardly you will progress.
of course, my english is arcaic, sorry.
Regards,
Alejandro.