I'd rec9mend you don't Google for pictures of hydraulic injection injuries or hydraulic injection that usually results in gangrene unless you have a strong stomach. A 2,500psi hydraulic stream has more in common with a razor blade than a leaky garden hose. Nothing you want to be around.
Replacing hydraulic hoses isn't hard. You just need to support whatever the hydraulics were previously supporting & respect things. A pinch will slow down & restrict fluid. How much depends on the pinch. More importantly circles are really strong, but a Cresent shape isn't. The pinched part will be much more likely to fail. Id repace a damaged section rather than risking it leaking or blowing out later if it were my machine.
My thoughts as well. Fix it right!