I think we need to simply state the facts & leave our opinions out of it. Mixing in our opinion steers the facts in our own direction, usually misleading & manipulating the hearers.
It is true that we need to see the positive side as well. Where sin abounds, grace does much more abound.
If we can't see the positive of God, how can we be edifiers to other believers? We would simply be another "gloom & doom" witness without it.