actually 4 characters is ALWAYS better then 2. your 2 characters wont be as good as 4 with lone wolf. you have 2 less sources of damage. less ability points (you get more total over 4 characters).
But for this hardcore mode it is supposed to be HARD AS FUCK. and lonewolf still gives 80% more hp and about 30% more skillpoints
80% more HP is still 20% less than two characters would have and 30% more skill points is 70% less than two characters would have.....in essence making everything that much harder, in fact it would be suicidal so if someone can somehow pull it off then why not?
And he's totally missing the spirit of hardcore....what kind of "hard" mode is that supposed to be when not limited to weapons and equipment less useful than wet paper bags?