The true one tool player is both rare and tough to fit on a roster. The hit tool is really the only single tool that you can get to the bigs with and it's quite limiting when you get there. He is an incredibly interesting player that is one tool short of being a superstar. Love him as a player also but his arbitration and contracts are going to be very interesting.
Speedy Arraez would be a 6 WAR player, every year. He could play functional left field, hit .380 and pile up value on the bases. More slug with more hustle doubles and triples. Like a budget Ichiro, minus the arm. That's just one additional tool that he doesn't have.
Powerful Arraez fits in any lineup and has plenty of suitors with the universal DH. A 30 HR version of Arraez with the other hit tools intact is a $150-200m player. Budget Soto? Another additional tool he doesn't have.
Middle infield Arraez (say, OAA break even at shortstop) is a darn fine player that also fits every roster. Would be playable at 4 spots and not a total liability with no speed. Also a tool he doesn't have.
As he is, he's not a fit for a small market team as a high priced player. The Twins and Marlins just can't pay that much for no power, no defense, high average player. They can justify spending on a Correa because he does everything.