That's the NFL these days, the rules all skewed towards the offense, and you have some brilliant Coordinators.
PFF has the Rams as the #1 overall defense, and they gave up 31 to Bryce Young.
If you build a great offense, it doesn't matter the other teams defense, you will likely score in the 30's on anyone.
Eagles scored, 28, 55 and 40 in playoffs last year. This included the Chiefs, who were ranked #2 behind Eagles on defense.
This is why I don't get too upset when the Pats defense have trouble stopping a great QB with playmakers, no team can consistently stop a great offense.