To your point, Zombonir, the strength of the relationships Trea had with critical personnel and the fact that he was vocal and direct about wanting to be here sealed the deal and helped overcome the QO / draft capital considerations.
DD almost always gets his guy and the Phillies are a hot destination right now, so I sincerely doubt we would've walked away from the dance with none of the "Big 4" FA short stops - but when a top player wants to play for you and has as much going for him as Trea does, it's tough to look that gift horse in the mouth to try and thread a tighter needle.
It would be fun to look into an alternative universe to see how a Machado / Correa Phillies team would've performed, tho. Harper was the true pivot point for so many of these "this or that" roster decisions.