People keep saying that shit. 5+ years with it on all my desktops and half a dozen computer-illiterate rellies that I set up, and I've never seen an issue with it.
Computer-illiterates aren't the problem with Manjaro.
People using the pre-installed accessed to Arch's User Repository and landing in dependency hell or just updating the wrong package with the same result, to then look for help on the forum that is already a big joke and probably forgot to renew it certificate for the 4th or 5th time... that's the actual problem.
Also delaying critical security fixes for security reasons is the biggest bullshit concept ever invented.