Certainly, if you take “everything” as everything in each event, 365 days a day, 24 hours a day, every moment, every little thing, etc., then as the consultant said, it will not be “all suffering at all.”
In our lives, we have that person's own happiness, fulfillment, fun, etc., and there are many things that are not suffering (or things that don't go the way we want). As the consultant said.
I don't know if that will be the answer, but I think the Buddha's teaching “everything is all suffering” means “everything is connected to suffering, everything becomes suffering.”
For example, the suffering called “love separation (love separation)” is happiness when spending time with loved ones, but it does not last forever in the future. It's a pain that some kind of breakup will come someday.
In other words, even if you are happy and fulfilled now, you will lose it according to the logic of impermanent conduct. It means that even if you try to do something about losing it, things that don't quite go the way you want will lead to suffering.
Physical strength when young is also limited. There will come a time when life, relationships, money, and a sense of versatility all don't turn out the way you want them to. Actually, the happier you are, the more likely you are to suffer from that gap of loss.
I want to stay young forever. I don't want to break up. I don't want to die. The stronger your obsession, the more painful it becomes.
In order to ease or overcome this suffering that we humans have that does not go our way, the first step is to firmly admonish and say to our own hearts that “nothing will go the way we want due to suffering.”