I am just another 'lowly' User/Patron ...
[ And, I happen to be a Member of the Church ]
This is an ongoing dilemma, for many Members of the Church.
The matter, has been canvased, on numerous occasions, in the various 'iterations' for the 'FamilySearch' Forums.
Remember, that the "Temple" Work, relates to the Child; and, NOT, the to Parents.
That Said ...
Regardless, of the status, of "Temple" Work of the Parents, the "Sealing to Parents" for a Child CAN be undertaken.
I hope that this helps, somewhat.