A three leg chair & suspension rods, 100% speculation but willing to be educated.
I’m not sure the EC225 suspension rods are best represented by the three leg chair / Jesus nut theory. Several points to think about:
I assume they are normally subject to a stretch force but it you look at the diagram in post 42, at an angle of around 45 degrees they should also provide a degree of longitudinal support, via the rotor bearing / casing (although I can’t find what type of bearing this is). I’d guess the rods can act to stretch and compression forces as that is what they look to be designed for (it is a rod).
Now the Rotor shaft, this seems to be supported against gyroscopic / asymmetrical lift forces by the main rotor shaft, gearbox bearings, & rotor bearing. The three leg chair does not fit this situation. I can imagine the loss of one support rod would place an additional load on the bearings that may lead to eventual failure, but not an instantaneous failure.