That wiring is nearly bulletproof...I got mine way thick and I'm sure that 22+ gauge would be more than sufficient...I would say the original hotend setup was pretty good minus the acrylic parts, I've easily put 10KG+ through this single extuder w/o any problem, but that sounds atypical from a most end-users' result. (at first I kept clogging my nozzle w/ the warped bed, but glass and proper z-level made that a quick problem to solve.)
The other factor which I believe has helped my hotend life most was moving my thermistor up a couple mm towards the heat source for more of a reading in relation to what temp that core was vs the actual nozzle, making sure that thermistor was 100% out of contact with environmental air by adding a much wider and thicker layering of
Kapton, and PID tuning anytime I changed anything that could have altered the thermal aspects of the hotend... the staff just needed to pay more attention to where and how they were applying the thermistor and add PID auto-tune to to setup instructions once people got it into their location...at that point the nichrome wire version should last nearly forever.
I have a z-platform design with a single printed part and a couple short T-slotted Extrusions. (allowing for proper mounting of the qu-bd silcon, I really do like their redesign and it's simplicity...I would love to see their results as that's really what matters...I know my banding is pretty minimal atm, but the less mechanical problems FTW no matter what...I would be very happy with any real progress going toward solving any of the major problems that still exist.