The behaviour is interesting because it shows nectar-feeding and pollination by non-flying mammals might be more widespread than currently recognised, and that the ecological significance of these lesser-known pollinators might be more important than we think,” says Lai. “It’s very exciting.
Pretty sure wasps are both pollinators and carnivores.
You are correct.
https://www.almanac.com/hornet-vs-wasp
Seems like they’re specifying non-flying mammals:
They’re also assholes that the world is better off without. (Anti)social wasps, that is. Solitary wasps are cool.