Schottky dodes are fast switching with a low forward bias. They're fast switching because they have a zero recovery time - there is nothing to recover from because they don't use a charge carrier depletion region at the junction (which is how a PN diode works).
Over-engineering is always better than under-engineering in a prototype or a one-off. If you don't fit them you'll probably get away with it. If you do fit them you can be certain there won't be backlash, assuming they're big enough. Your next step is to fret about how big is big enough. Are you going to add input protection? An over voltage zener shunt? A current-limiting thermistor? Where do you stop? You might think, "Not in the prototype, I'll get it right and then add all that bunk." but in fact you are more likely to blow up your prototype than a finished product.
One day, all this too shall parse.