Why is that a hard pill to swallow? Longevity doesn’t imply goodness, especially in software. Same for Bash, C and gnu utils.
It also doesn’t mean it’s a good idea to use it. I would strongly recommend… basically anything else over Jenkins.
Maybe I missed your point there.
why do you recommend other tools over things which are tested and will last way longer than whatever the current fad is? The best part of Jenkins is it’s ubiquitousness - writing code that will run forever is not to be sniffed at