Apparently that's the recommended way from Tesla to do it, per that thread. Do they not make extension cords you can use with the charger cables so you charge from other angles?
To add to the understanding of why there aren't just extension cords for these, those cables are liquid cooled. You pretty much need the right sized cable the first time to handle this much power.
Tesla is rolling out stations with longer cables. Supposedly, there will be more long cable V4 supercharging stations than the older short cable version in 18 months.