Yes, if you are certain that:
- the frogs will act in concert. That is, if one frog is one polarity then all other frogs should be the same polarity, as with consecutive frogs in a double track crossing.
- or -
- there will only be a single locomotive on one of the frogs at a time. For example, an industrial spur that will only ever be switched by a single locomotive.
If by chance 2 locomotives short a single output it would shut the booster down but it won't cause permanent damage.