Analogy overkill was how we would best summarize the opening sessions at the Content Delivery Summit – the younger sibling of this week’s Boston-based Streaming Media East festivities – to the extent that Faultline had to question if we’d walked into the wrong building. Harmonic’s Jeff Gilbert, VP of Content Delivery Services, unleashed an unfounded attack on the CDN industry – presenting a case that networks are doomed unless content delivery investments are repurposed away from dedicated CDN infrastructure and towards a collaborative effort between publishers and ISPs. CDN people are throwing wasted resources at solving the wrong problems, Gilbert argues, and the reason his loose analogies with the travel industry and medical breakthroughs ruffled so many feathers on the…