Counter argument would be you can have the best OL and DL in the country, but with average QB and WR play you are not winning it all.
Let's not kid ourselves, the Bucs replaced Jameis with the Goat, that is why they won the Super Bowl. IT was NOT their superior LOS play.
Switch Brady and Winston this year, and the Saints would be in the SUPER BOWL, and the Bucs would go back to a .500 type team.
Again its the reason QB's are taking above OL now in the draft, and WR's also. The top 6 picks were QB, QB, QB, TE, WR, WR before an OL.
Its a reason DT is getting devalued just like RB. The game isn't played in that LOS box anymore.
Again LOS is important, my argument is it isn't AS important as it was 15-20 plus years ago.