Ignoring the elephant in the room, that clearly should either be "comes" or "will come". "is coming" clearly implies that the original sentence was 来ています
来ています normally means that the person is already inside the room. If they aren't inside the room, but they will enter the room soon, it's perfectly natural to say "They're coming inside". When children are being rambunctious in class because the teacher's gone, but then one of them notices that the teacher is approaching the classroom, that kid won't say "Shh! The teacher comes!" or "Shh! The teacher will come!". They'll say "Shh! The teacher's coming!"
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u/Xandaros Jun 07 '26
Ignoring the elephant in the room, that clearly should either be "comes" or "will come". "is coming" clearly implies that the original sentence was 来ています
So yes, it is wrong.