Maybe, maybe not. We had a large number of unusual Pokémon show up in February as well - they were just about everywhere, and no one had ever seen them before. We also had an incident a few years ago where new Pokémon just seemed to show up in the wild despite them having simply not existed beforehand. It was incredibly strange both times, but they settled down eventually.
Granted, this is closer to the incident in February, and I don't know what happened to those swarms, either. They arrive and then they quite simply either taper off or vanish entirely. It's incredibly odd, and no one's found an explanation for it yet.
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Granted, this is closer to the incident in February, and I don't know what happened to those swarms, either. They arrive and then they quite simply either taper off or vanish entirely. It's incredibly odd, and no one's found an explanation for it yet.