The funny part is they could have easily shortened overtime just by getting rid of that lame “everybody gets a turn” rule, most of these games that end in ties actually have both teams getting touchdowns.
I think Americans have a weird complex about ties. They should just end in regulation. More ties would actually help simplify the standings and make the league less reliant on that increasingly bizarre list of tiebreakers.
I don't think the lack of ties is what makes the NFL's tiebreaker system so bizarre. What's driving that is an expanded league with imbalanced schedules, many divisions, and multiple wild card teams in the playoffs. You're starting to see a similar issue creep into MLB in some seasons now, too.