I believe the decision soft vs rigid vs [new tech in between, eg tensairity or similar] is not settled black and white yet. Yes - a mesh containing smaller soft kites can take a lot of punishment on the ground and will not break. Even so, during handling a line may catch something, and giant forces applied to the mesh. Also, using low L/D kites for generation leaves little room for depowering in a storm using L/D reduction (ie. lowering AoA on an airplane style kite)
This is easier avoidable with a more rigid wing. It has higher L/D (otherwise, whats the point) so it has larger depower abilities built in. The rigidness helps handling gusty storm winds without landing.
Now the rigid wing has some issues that have been pointed out; the forklift effect (?) and cubic mass scaling being some, along with higher minimum flying wind speeds (due to more mass).
There are no or few hard objects in the air. The forklift effect only regards handling on the ground. This should be manageable, though still complicating things for rigid wings. Cubic scaling of mass: manageable by optimizing the design, in particular by adding bridles and “antibridles” to support the wing. Optimizing the design might be sufficient to scale to relevant dimensions for utility scale AWE, around 20-30 meter wingspan. The benefits of rigid wings may be more important than this scaling limitation.