Yeah... the sensors/wiring below have to be disconnected... Knock sensors, ground points, starter, A/C , and maybe a couple of others. Yeah, they're a PITA and I've thought the same things many times. If you plan to remove/replace the intake often, then yeah, I'd maybe cut and splice that wiring into a new connector that can be connected/disconnected from between the runners.
I'll double-check the extra harness I have, but get a male & female connector (and pigtails) to hold enough wires to do this mod. Be sure to do it properly... solder and shrinkwrap, then protect a bit further.