Hm right, I guess this would only matter if the revoked commit tx gets confirmed. In that case you may have to compete with the HTLC output spend, which is why @ajtowns is suggesting an additional relative delay for SINGLE/ACP usage, at the cost of more signatures exchanged.
edit: I’m wrong and tbast is right, look at reply
Remove all the 1 OP_CHECKSEQUENCEVERIFY OP_DROP please!
You could also use any non-pre-signed HTLC paths for fees as well. e.g., Bob could sweep Alice’s offered HLTCs with preimage and use those towards fees.