This does not change a NT primary job in 3-4 defense. Please find me a good or great pass rushing NT today if you feel like i'm wrong. Teams obviously still value great run stopping nose tackles and Damon Harrison is a primary example of that. The statement you made by saying "good defenses are the one that get interior pressure" is only one level of what a good defense is able to do . A good defense is able to stop the run, defend against the pass and get to the quarterback it's really that simple. The Ravens probably were at their best at getting pressure on the quarterback in 2014 but there defense was not special and if you think so then wow.The Eagles, Browns, Dolphins, and etc were on of the better teams in The NFL to get pressure on the quarterback according NFl Gen Stats. Dolphins defense got destroyed by Le'Veon Bell in the playoffs and they paying defensive tackle by the name Ndamukong Suh 19 million this season after paying him 12 million last year.
Overall either it's in 1987 or 2017 today nose tackles in a 3-4 defensive scheme tend not to make a big impact statistically but their job is to clog up as much space in the middle to allow other defenders to make plays . The nose tackle are often double teamed by the offensive line in order to move them in preferred directions depending on on the offense play call so they obviously help with interior pressure by freeing up guys like Timmy Jernigan and etc. Having a big strong nose like Brandon Williams also helps with keeping inside linebackers like CJ Mosley at 238 pound instead of 245 or 250 pounds and for obvious reasons.