The thing is, you just don't see position players pulled from the field or from the bases unless it's something absolutely egregious. What Pratt did was not anywhere close to egregious even factoring in the bunt pull back the prior at bat.
So you have Murphy with the knee jerk reaction. If you just had to bench Pratt because he violated some baseball code so badly, you at least wait until in between innings and then send Bunty out to the field.
Bush league move by Murphy the way he handled it.