Yeah that is a good reason.

And looking at the documentation it just saids it uses the frequency band of WiFi not that it uses WiFI. https://www.rra.go.kr/ko/license/A_b_popup.do?app_no=202317210000256753

translated

Specific low-power wireless devices (wireless devices for wireless access systems including wireless LAN (5150-5350 MHz, 5470-5850 MHz frequency band))