

Working in the mortgage industry, part of it is also how lenders assess the income from the property when compared to its value. With interest rates having shot up the last few years (albeit coming back down somewhat recently) the stress calculations mean lenders want ever higher rent to cover the mortgages they have on the properties.
Doesn’t help that your average investor is usually borrowing the max of 75% LTV either, as you said.
Given the more recent email saying not to use the link, might be worth removing the link to the site from here as well?