Yep. Definitely better to spend billions on that, than simply staffing both chairs in the tower, like the system was designed to have.
One controller talking to the IFR on the ground safely getting a clearance, the other looking outside full-time probably would have averted this one.
We're all way too used to controllers doing more jobs simultaneously than the system was designed to have them do.
The commentary that adding a tower has made things less safe, bears that out. We've allowed the system to be slowly dismantled from within over many decades by statistics and managers who get away with it most of the time, and have the blame fully settled on the pilots long before the accidents occur.
Lone controllers in tower cabs, R-sides with no D-sides assisting for decades, plus condensing multiple sectors into a single R-side running three, four, ten, whatever frequencies simultaneously...
The system wasn't designed that way. And no. Safety is truly not the priority, budget is. Politics second. Safety is maybe a distant third.
The current "ooh, shiny!" at FAA is ADS-B. You won't hear anyone calling for cutting that budget to staff all the chairs.
Anyway... Awful stuff no matter how it happened. RIP.