@rubik
The CF34 is a hydro-mech engine.
The rated max takeoff power can be achieved with the throttles some distance from the stops, depending on conditions. Push them forward and you'll exceed the rated N1, and hence the rated thrust. By, as I said, as much as 25% in some conditions.
There are more engine/airframe combinations than CFM and Boeing: be wary about making sweeping statements about what is or isn't impossible extrapolating from a single design approach.
If you encounter Windshear in a CRJ (for example), you push the throttles as far as you can if you have to (the exact phrase is use "all available thrust" to avoid ground contact); so what if you trash the engines (and that's a definite possibility at 25% overthrust), at least you might save the aircraft....