Yd
A good point but transitioning from gpss to heading is easy; press the heading button on the g1000 and heading on the ap assuming not gfc700 equipted and you are in heading mode with bug steer available at the twist of a knob.
The procedure does not disrupt the fp, you can either use the bug to steer back onto the magenta line when you are ready, or pull up the fp and use the d function to repaint the magenta line direct to the next wp in the fp. You can even resume gpss but it is not as elegant as using the bug to get back on track because of the greater bank angles the ap will generate.
There are times when the turn time is not as quick as you might wish in this mode. Lets say you are in the descent or for that matter s and l cruise, anxious to avoid imc for whatever reason and cloud is looming large but with attractive gaps. Maybe you think fine i can stay visual but disengage the ap to give yourself the required manoueverability; of course the danger is high rates and bank angles can ensue as you attempt to stay with the hole and then you find you cant avoid entering imc. Aiming at gaps can be a risky business unless you know what you are about but also like mermaids very attractive to a sailor that is missing home.