Echoing what others have said; things can be reliable, but nothing is bombproof or good forever. It's a machine, even if you only drove it on sunny days with temperatures between 50 and 70 degrees, things will fail (hopefully nothing significant).
In the large scheme, I'd say a lot of these complaints seem like nit-picking and to think "I buy a LC, I'll never have issues if I just timely service the basics," is a bit of an unrealistic expectation. If you want to experience per se "unreliable," go drive a BMW (specifically one with the N54 engine, which was their first crack at turbo charged & direct engine) or Mercedes. "Preventative maintenance" in turbo BMWs entails replacing all 6 fuel injectors (plus coding), walnut blasting your intake ports every ~30k, hoping you don't melt coolant tanks from the hot-V design and replacing turbos because of wastegate rattle.
The things complained about in here, fortunately, don't come close to that.