Hi Donald:
Opinions and circumstances vary among institutions. On principle, giving points to some students but not all seems a bit unfair. While I agree that circumstances can be legitimate, the balance of the students record should be able to carry them to at least a passing grade. If not, perhaps all of the learning that should have occured did not happen. But each instructor has to come to their own decisions about how to handle missed assignments.
Two thoughts:
1. How would an employer handle a missed assignment that resulted in an unfavorable outcome for the business?
2. I think any guidelines for EC should be discussed and printed out on day 1, then everyone is required to follow the rules the same way.
Regards, Barry