"Upgrade" to a U-Lock?

We all know the back-gate-secured-by-cable-with-a-combination lock school of security is a joke . . . but as long as we're going keep such a laughable measure in place, can we at least make it a U-lock style bike lock that will prevent the gate from being opened wide enough for a person to squeeze through? Under the current cable-and-padlock arrangement, I can easily squeeze through the gate even when it's locked -- and I weigh close to 200 lbs.

Maybe it's time for an update on when whatever more permanent measure will be replacing the bike lock will be implemented.