I think the stats have shown that they are better offensively than defensively. But yeah, a lot of them would advocate for them acquiring another run of the mill #4/5d which isn't gonna do anything or add anything they don't have.
Outside of the obvious absence of a stud, rare #1 that teams only find when they draft them, they are now clearly missing a Jake Muzzin type but maybe Liljegren can provide that. And yeah, I would explore trading one of their studs up front if they can get proper value but the most they would have gotten for Nylander is Gudbranson or some shit. Dude is perpetually undervalued by everyone; not a great candidate to trade. And yeah, their forwards would immediately look much weaker anyway.