Are you sure on that interpretation Joe?
The reason I ask is because I was in my local immigration office on 22 May 2020. I was there to get a letter confirming my place of residence for a vehicle purchase. They pulled my details up on screen which showed that my last 90 day entry was on 27 December 2019 until 25 March 2020. I extended my stay at their office by 60 days until 24 May 2020.
They told me on 22 May 2020 that I am lawfully here until 31 July with no need to extend my stay or do further 90 day reports until then.
Your interpretation seems to suggest that I am unwittingly an overstayer which is pretty alarming to me.