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She just saying if people already calling this a harem then by their standard solo leveling is a harem.
She doesn't mean solo leveling is actually a harem, she just saying people calling this a harem with just one girl at scene is ridiculous.
But I get the people, cuz we all want an action without a harem, like it's old troupe, we want new, right? So people got traumatized seeing girls getting a crush on MC. And immediately calling it a harem even if it's not unless there's a novel that says so.
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Cuz everyone has their own interpretations on things so it's bound to be misunderstood by some people.
Especially us ESL (English Second Language) we sometimes find it hard to explain it to others and that will definitely confused some people if we don't explain it to them more clearly.
Which sometimes resulted on fights cuz the others thought you're mad on them even if you're not. Which happens to me often.
Why are you guys doing quick to call anything with more than one female character and harem, by your classifications solo leveling was also a harem. Dumb shit.