The Taxpayers' Alliance's Magical Money Tree

From their email Bulletin of today:

Last year, empty rate relief [i.e. vacant commercial premises get a reduction in the Business Rates they have to pay] was worth £1.2 billion to businesses, and with high vacancy rates across the UK, many landlords may simply to choose to demolish empty properties instead of paying the new rates. This would mean fewer properties for business to relocate to or expand in, making recovery more difficult.

Savers who are funding their retirement with rental income from a small number of commercial properties will also be hit despite receiving no income from empty properties.

Ho hum. It's not clear to me how people can 'fund their retirement' with no income from empty commercial premises? Whether or not they have to pay Business Rates, they still have to pay interest on the loan they took out to buy it, and even if they own it mortgage-free, wouldn't they be better off selling it and buying something that does produce a regular income?

And aren't the TPA confusing 'business' (i.e. people organising themselves to produce goods and services for a profit) with 'people who own commercial premises' (for example, 'savers who are funding their retirement with assets that generate no income')? Buying a building and leaving it standing vacant is hardly a 'wealth generating business activity', is it?