Personal take on this statement.
Boeing are trying to tell you that when landing on a dry runway, you can get significantly improved braking (if you need it) by applying max manual braking. ie. if you land long and think it may be possible that you might overrun, press the pedals to the stop.
The OP's assumption that the reverse is true is simply a step too far...
Full wings - I partially agree. If attempting a max perf landing on a dry runway - I would land on MAX and when under control apply full brakes...