Silliest design ever? It's a slightly modified form of the common therapod body type, not even wildly alien. Even the claw removal is hardly an outrageous idea - functional equivalent of dehorning cattle, which is everyday practice in the real world.
Their saddle designs are probably a bit off the mark for realism (you'd probably want a much higher cantle and multiple cinches ) but the gashants themselves look fine to me, just alien enough.