DDO is no RP-fluffy-stortelling game. Instead it provides more or less nice storylines along with numbercrunching paradise.
In absoluteley every game is a given potential for min/max.ing. You are arguing from a very personal view on how characters should be built. And well, if we had a minimum score of WIS then those toons had a minimum score and that was it. No gain, just a few less points on a main aspect, be it less STR for dps or less WIS for DCs.
I really doubt that something like that gave more fluff and balanced toons. And, I highly object your opinion on that. Nevertheless you are entitled on having your own taste. nevertheless we won't come together on this point.
A Bladeforged FvS, blessed by The Lord of Blades himself, sent out from the Bladeforge's inner sanctum to roam around in Stormreach is inherently a violation to fluff and consistency in this game.
If anything they could make a whole spin off out of the iconic classes and put them into a different Stormreach setting according to the storyline of LoB. One big fluffy point, which DDO is still missing, are visible consequences on Stormreach and its NPCs after you completed some tasks.
But that is sheer impossible to deliver in an MMO. If I want fine tuned characters (and I mean characters due to their history and life experiences), sandboxing or a dynamic world I play Skyrim, Dragons Age, The Witcher, Assassin's Creed etc.pp. No MMO can deliver the current standards of single player games!
DDO is plain too simple in design.
And, you are hijacking this thread with an otherwise nice topic for general DDO discussion section . The OP asked about gimp or not gimp. Fluff seems to be very irrelevant.