The numbers don’t account for reality. In what you have posted they have given a nice wonderful world where you are renting your property 51 weeks of the year. I would say this its more around the 48 week mark, and would be basing your figures off of 48 weeks to make it more realistic and conservative. Also rental prices, dont assume they will go up. My 2 yr property down south has just taken a $10 a week rental drop thanks to over market supply. So it has basically gone backwards.

They have also made it a bit more misleading, for the gross/rent to get the figures by using gross rental yield 5.1% multiple esitmated property value, which again I would say is over estimating the property value.

You can make figures and stats say what you want. Do your own math, look at how much the area has gone up in value in the past 10 yrs + how much rents have gone up. etc etc.