If you are worried about "ball control teams" consistently being able to use up 7-8 minutes on the clock in overtime, you appear to be scrambling to find a reason for disagreeing. I didn't do extensive research, but I found a 2016 chart that showed "ave. time of possession". Detroit lead the league with an average of 3:08/drive.
https://www.sportingcharts.com/nfl/stats/team-time-of-possession-per-drive/2016/
And if a team did put an 8 minute drive together, you don't think the opposing team can't do anything with the remaining 2 minutes and 2 timeouts? What do teams currently do when they have a 3 or 7 point lead in the 4th quarter with less than 10 minutes on the clock?
If you want to talk about change, isn't stopping play, flipping a coin to determine possession and then putting an arbitrary way of ending the game with a score as what determines a winner, change from how the game is normally played? Why is OT treated like the start of a game or the start of the second half, yet has this magic bullet aspect of "you scored, you win" ?