Sentence Correction (SC) | Re: A ruined structure found at Aqaba, Jordan, was probably a church, as

That a ruined structure was probably a church is indicated by its
1. eastward orientation and
2. overall plan, as well as
3. by the artifacts, such as glass oil-lamp fragments,
found at the site.

Those three elements are not parallel, right?
I was expecting the below structure.
1. eastward orientation and
2. overall plan, as well as
3. the artifacts


According to many other official questions, the usage of as well as, with and, entails its element to be parallel with elements coordinated
...

---