Yes, that's a MacLaren problem. I lined my Mac up with another stroller that is "Too short" for me to push and Lo, they are actually the same height. The Mac has more angle to the handles though where as many other strollers have the wheels directly under the handles so they don't tip as much. But that's why I can't push them.
The perk of having a kid in a stroller is being able to lighten the load of the walkers. The Mac tips with so much as a cup or an autograph book in the back. I often like to put my purse over the handles as I have an odd walk and my purse annoys me when I push.
I have a clear plastic caddy I hang on the back. Breezes me through security bag checks. Bandaids, my medication, camera, book and pens, napkins, etc. It would be nice for the stroller to manage that little extra.
My stroller weighs less than my newborn did. Ankle weights are not going to make it unmanageable. I'm sure it can still be folded and carried with them.