""compatiblity" with the person you marry is based only on: they go to meetings, they go door-to-door, they read WT literature. That's it."
That is exactly the problem. Do not become unevenly yoked. But what if one does not like meeting or the service or other facets of the JW life?
Find someone who is also like that. The problem is that people are encouraged to look for ones on a 10 on a spiritual level. But people don't advertise that they are a 2. People need to find ones whom they are compatible with and be happy, not focus on the things Shirley listed.