If the headline is to be believed, then completely abolishing the Toronto police would have 0 impact on crime rates in Toronto.

Did you even try to read the study?

data on municipal police service expenditures from 2010 to 2021 in 20 of the most populous urban municipalities in Canada

In 2019, police services were the top operating expenditure in a majority of the municipalities. Real per capita spending on police services increased in 16 of 20 municipalities from 2010 to 2020. Marked differences are seen in spending between municipalities: in 2019, in 2020 dollars, Vancouver spent $495.84 per capita, whereas Quebec City spent $217.05 per capita.