The commit had a comment to the effect of being test / toy code not meant to be put into a release. I don't think a claim of randomly producing the snippet would be put forward in the hypothetical court case. Then there's the question of malice vs some other motive of expression in looping and printing some ASCII / zalgo art in your own terminal art lib.
Any reasonable expert in the field will tell you you don't plug an auto-updating dependency into production. Marak wrote code. You, (the consumer), pulled, and deployed it without due diligence. That is entirely on you.
Not one person is obligated to keep your crap working except you. This has really outed all the people who really should know better.