These books, while not all of them EXCELLENT (though many of them are), just don't get enough (or in some cases any) attention. Some on the list, like Moonshadow, do have a certain prestige, but nowhere near enough as they are always lumped in with other titles from the same time period that are better known and cause these other overlooked gems to get largely pushed to the side and regarded as "also-rans".
Other things on the list were perhaps merely regarded as basic superhero material and weren't given the chance to show a broader audience that there was much more going on.
All in all, these are titles (whole volumes and individual creators's runs within long-running volumes) that I really wish had earned a wider audience. For gosh sake, some of them have never even been collected in trade!