No one is asking for a do-over. Classes/jobs evolve over time across expansions, since HW summoner has been gradually moving towards feeling like a summoner and less like a job that's primary strengths are dots. Regardless of whether you enjoyed the old summoner playstyle, it was badly designed and felt nothing like a class based around strong summons and your interactions with them. While 4.0 summoner has many glaring issues, it's design is headed in the right direction. People just hate change and want their old, archaic dot playstyle back for some reason.