With regards to the attribute system, I've posted previously that players must play to the strengths of their builds. Character's won't automagically be great at everything. If you build a wizard with a low-Int, you're de-emphasizing AoE size and durations, which is fine. A lot of wizard spells have AoEs and durations, but a good number are also single-target/instantaneous. The power of the wizard is not in brute force, but overall flexibility. You can choose to stick to a subset of the wizard's spells, but you aren't taking full advantage of their greatest class strength (lots and lots of spells). Again, totally fine and should be viable.
I haven't seen the post but someone said that there was discussion about the arches in the screenshot. I'm not sure if you can see the details of the arches, but the stones are actually held together with adra. Adra is a grown, shell-like substance that the Engwithans used both as structural elements and for binding purposes in their architecture. Often they would build things like traditional stone arches and grow adra in-between, using it like slow-growing mortar. As their buildings fall apart, it results in impossible-looking/gravity-defying ruins.