Well, at least he got one thing correct. Mostly. Science is a system for generating a model of the world. It just also happens to be the best one we have, insofar as it has generated the most accurate model of the universe to date. Is it perfect? No. Should it be criticized? Yes, otherwise it won't improve. Should we throw it out altogether? Perhaps that question should be put to the literally billions of people whose lives have been saved and improved by the results of science. Or not. Those same billions are probably very badly informed about science, which is what Adams should be railing against, not science itself.