You can't deny that he did say this to reassure her, however. She looked at Krillin's opponent and saw that he was times larger than he was, it's understandable she'd be worried. The last part is what he told himself, the "among earthlings" part, was what he said to himself.
Like I said, I can see why Krillin is the strongest human considering what Toriyama stated, but that doesn't mean I necessarily agree with it.
Like I said, I can see why Krillin is the strongest human considering what Toriyama stated, but that doesn't mean I necessarily agree with it.