Sure it's possible, but that's no reason to nerf it to a laughable amount of use, nor to require an upgrade to do what a fit person in real life can do for 50 metres without problems.
All good game mechanics can be exploited in some way.
They are running most of the time. The energy draining sprint is some unusual kind of boost, considering you can also "fast-creep" with it.
As it stands now, I cannot run my guys away from any soldiers, because it literally just has enough to take them across the street.
That happens. If you could simply run away from danger easily, all the time, where would the challenge be? Might as well have a "teleport to safety" key.
Don't run around in the open. Go into alleyways, or places with lots of angles around walls, to try to break their line of sight. Then hide behind cover until they call off the chase.
And, if you get caught by someone who you don't have a bad reputation with, they will generally just escort you offsite. Just don't have your weapons drawn, and let them apprehend you.