Context is not obvious here, so there is no way to answer you fully. I will try to help.
1. It is habitual for Japanese people to express their feelings as indirectly as possible, so as to not offend others.
1. Normally, Japanese people express their feeling as indirectly as possible, so that others are not offended.
I wouldn't use the "normal that" version at all. That may be a local usage variation on my part (Canadian) however.