Gaelic speakers have a variety of accents, which are reflected in the audio of this course. If you think there is an actual problem with the audio recording, then please submit a report to us rather than posting in every sentence discussion. The audio for this sentence is absolutely fine.
The pronounciation of the word "ghrian" may be an absolutely correct dialectical variation, but it is NOT the pronounciation given when the word was first introduced in the course. If a word has five correct dialectical pronounciations and you only give one when the word is introduced, how do you expect people to recognize the other four if they've never heard them before?