Summon size have you down? why not have it your way?

[Hoshikogi]

You are advocating for a complete re-design of the class after launch. That simply won't happen for a wide range of reasons, mainly that people have been playing the existing class and have existing gear tuned to the existing class. You cannot wipe out every summoner's progress in order to replace the class with something else. Not to mention the time and resources necessary for that kind of re-design would destroy the 'new minor version every 3 months' plan they are trying to hold to.

It is simply not feasible.

Rapid, progressive class/job/profession changes have occurred throughout MMO history; this game and their original (FFXI) is no exception. If the developers feel that their original designs are terribly flawed or too many players find issues with them, change can and usually will occur.

Also gear in this game is very generic; thus, if they do make changes to the class, gear would have little impact and even if it did, SE would make sure to modify at least the job gear to match the necessities of that particular job. Even if you craft your own accessories and meld them, there's a good chance that each piece will contain near maximized Crit/Det/spell speed/accuracy (I craft and meld many HQ-i70 accessories often for myself and friends/LS/FC so I can verify this information).