The other supports are still only being used as accessories to Mercy from silver to masters from what I can tell with my main and alt accounts. That wont change until they fix her beam to require an aim mechanic because unless you have 100% accuracy with any of the other supports, you just wont be as reliable and mobility is still huge. At least seeing some other pick combos on occassion now.
Also, rezzing right now isn't that difficult. If you're struggling with it, find yourself a tank main to duo with. Call out who you want to bring back and get the cover you need.