Lol....welcome to my world! Except I'm 5'0 and have encounter this on many occasions.
Not to be disrespectful to the great people that design & set up stages, but I'm not sure why this is still a problem. There's quite a few short women (and men) not to mention kids/young adults who shoot.
Having a step or platform of some kind doesn't work for me entirely. Ya it helps me see the target, which is I guess the important part, but it takes time to make sure I land on it, stay supported & take off safely as opposed to stepping into position, engaging the target(s) & moving to the next shooting position if there is one.
I've heard this before, but you have the ability to get low, I can't get taller.