Ok I think I figured it out, I was talking bull in previous post. I analysed Singstat more deeply.
https://tablebuilder.singstat.gov.sg/table/TS/M060171
MAS strengthened SGD in spite of the negative balance of payments, most probably due to confidence in Singapore's economic strength. The strong current account surplus every quarter indicates that Singapore's economy continue to do well in spite of the negative global headwinds.
Although SG has maintained a solid quarterly current account surplus, there was record net investment outflows starting in Jan 2022 (= "capital flows", also the capital & financial account flows) leading to net outflow of money. The identified type of investment outflow is "other" which means this is taking place in the private institutional section.
Thus MAS was not looking at the hot money flows, when deciding to strengthen SGD.