If I understand the question, the point is that the current tax system advantages the person who buys. There are some advantages to that. We have a very high home ownership rate. Among businesses, if someone owns their premises there may be some advantages to that in terms of their connection to the community.
On the other hand, they are also mixing up what they're doing. In a sense, the tax system incentivizes someone to be both a printer and the operator of a property. One of the key benefits of renting, either residentially or commercially, is that the businessperson can concentrate on the business; the landlord concentrates on the property. The landlord knows how to manage that, looks to the long term, and can get financing to improve the building, when perhaps the printer doesn't have the money, but now's the time to change the roof.
So we're saying that pushing people to own rather than rent is bad for the economy. It results in a less efficient allocation of resources and is unfair. The costs that the landlord pays are costed on the margin flow-through to the occupant, the tenant, whether they be a business tenant or a residential tenant.