There speaks someone who has probably never tried reconnecting at 3am, 300km into an audax, in the sleet, half way up an Welsh mountain...
Me neither, but it could happen...
Even in broad daylight, with my bike up on a stand, I can't get my fingers in there, and so use needle nose pliers, which do awful things to the insulation around the slides, and even to the metal slides. It's a miserably fiddly design that Andreas Oehler, who is at least a cyclist, should have nixed. At the very least, if you insist on using a stupid-light design on a touring bike, pull it from an auto parts bin, not some miniature dolls-house size that nobody can find in a town with several auto supply houses.