Hi Yang so sorry to hear about your refusal on what seems like my wifes to be such a ridiculous reason. Just to let you know that after my wifes refusal we immediately sent a letter requesting reconsideration to the ECM at the Embassy in Manila pointing out why we felt the refusal was wrong. Unfortunately they appear to have ignored our request and insisted that we should proceed with our appeal. Although it didn't work for us it will not do you any harm to try. You should also make arrangements to submit your appeal to the UK within the 28 day limit. We are currently waiting to hear from HMCTS as we have like you requested an Oral hearing.
Please dont lose heart, I know that it is very hard for you both at the moment as we are having the same experience. But stay strong and commited and I'm sure everything will be fine in the end.