They may in fact aid connection range. Like a windsurfer they could in fact help to redirect signal. OK there is no curve to focus the RF but at least its in right direction.
The main point is to make sure the cable ends are insulated from everything, otherwise any inductance can lead to problems.
I recently acquired a P3S with an ARGtek wi-fi extender installed. I have 2 (or 3) long antennas - a 2.4ghz and a 5ghz. When/where should I use one vs. the other? I install the flat panels on each end & a long antenna in the middle but am curious about the differences in frequency & how they should be used.
I've only flown it a few times & the big parking lot I use is fairly close to a very small airport so I can't get over 100' high due to the restricted air space. I don't fly in that direction anyway & need to find another large area for practice.
You have it set up correctly , the 2.4 panels on the outside and omni directional antenna in the middle with the kit you normally get a extra flat panel to replace the centre 5.8 ariel and this is for longer range flight as you need to pointed straight at the bird to keep contact but will give you more range but for normal flying use the omni directional long antenna as this sends the signal out in every direction for normal flying the panel antenna is only used for long distance with line of site