I must confess that I have not watched the debate in its entirety. My knowledge of it comes largely from the reporting of BBC Radio 4, through the Today in Parliament podcast.
From that report, it did appear to be more of that fundamental discussion of Brexit. It is challenging, I think, at present for the British House of Commons to have fully dispassionate debates on Brexit, given the extent to which the entire political system has been consumed by it, particularly the divisions not just between, but within parties on this issue.
The report concluded by saying that it was refreshing to see it in a different venue, and that the party lines became blurred. That is, in some ways, one of the main benefits of that system. I believe it was noted by David Natzler that the Westminster Hall model is a horseshoe, which helps to reduce partisanship as compared to the more traditional two swords' length seating arrangement.