At current time s77assistant does not check if seven77 members are active or not so you can still benefit from s77assistant.
All members included in nathanmars list are eligible for:

1. one of two full votes ( this is random ) per day,
2. enhancedSBI (you send 2 steem to s77assistant with memo 2for3 and get back 3 SBI shares )

if you decide to delegate power to s77assistant then you get a guaranteed vote each day. vote value is calculated based on your collected points plus spare points from unused voting power.