Doesn't make sense for Miami. Slimm mentioned it before the draft, but Pass Rushers help put you over the top - when you're already good. They don't make bad teams good. What does make bad teams good? Playcallers, QB's, OL, and receiving options.
The Bears had a stacked D and an elite DC, but they needed a Pass Rusher. But, even with a historically good D, Chicago came up short because of their QB (and Kicker), and the D is bound to regress in 2020 (would have even if Fangio stayed). In life and football, invest in things with staying power. Offensive production is sticky, because so much of its success is tied to Playcaller, QB, and OL - all tend to be good or bad year over year. Miami isn't close to where Chicago was, but even if they were, that type of investment in a Pass Rusher is more questionable than most understand.