Lifting "when needed" is not the same as systematic and consistent conditioning...Well, looked at the Runner's World exercises, but IMO, I alreay do enough lifting, or should I say, too much lifting.
Just to clarify.
You condition yourself year around, no matter the season and not matter what you do for living (bee lifting or apple picking or keyboard tapping).
This way you are in a good condition either for snow shoveling season or for beekeeping lifting season (or for potato digging, for that matter).
Anyhow, yep, that is the persistent opinion - we already do enough lifting (seasonally, that is).