That's not actually a viable solution because conversely to those who are somewhat loud about the loss of threaded view, there's another bunch who are very happy that everything is in flat view, which was a preference in the previous software.
Most of you will understand from your own imports and migrations to XenForo that there's always going to be a loud minority who are averse to change. Most will get used to it and adapt.
DPR will continue to assess feedback and consider adding a threaded option back if it's deemed appropriate.