President Yoon is probably thinking ahead to when he exits office and I am sure he does not want a bunch of leftist protesters outside his retirement home:

Rallies around the home of former President Moon Jae-in will be banned starting Monday as the Presidential Security Service expanded the guard zone for the former president amid persistent noisy and menacing protests.
The decision to ban rallies within 300 meters from Moon’s home in Yangsan, about 310 kilometers southeast of Seoul, came after President Yoon Suk-yeol ordered the secret service to consider strengthening security for his predecessor following a suggestion from National Assembly Speaker Kim Jin-pyo.
Since Moon left office in May after a five-year term, his home has been plagued day and night by raucous loudspeaker demonstrations by right-wing protesters and YouTubers opposed to the way he ran the country.
Last week, one protester was arrested after making threats with a box cutter in front of Moon’s home.
Yonhap
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