Your worries are unfounded for the application.....so long as your parts are sized correctly and used as part of a system ..not just a singular component...which the ones shown above are...
The 5/8 shank of each rod end will accept at least 30000lbs of shear loading prior to failure....
The spherical bearing is fully captured in the event of the above mentioned failure....(but if you have a failure like that I would be pretty certain the brain failed first and you had already impacted something)
The total loading is spread across the DOM steel structure that is 1 1/2 OD DOM tubing ...similar to roll cage tubing....so with that said we have a pretty high level of redundancy...and "overbuiltness"........
...(FEA proven)
Nnow get off the paranoia armchair and get back to work on your car....and post some pictures for all the other budding builders....