Good point undercover.
The wording is interesting. They don't say what to do specifically but instead make the vague statement ...
The Bible does not set out grounds for marital separation. However, some married Christians have viewed certain situations as a reason for separation, such as the extreme endangerment of one’s life or spirituality by an abusive or apostate spouse
I could use that format to make the following statement...
The Bible does set grounds for certain observances and activities. However, some Christians have viewed birthdays as a perfectly acceptable event to celebrate with their loved ones.