What was the condition of the office?The US is weird man. I've never heard of this anywhere in the UK or Europe.
I just looked it up and the US Gov website says,
"No employer is required by law to provide a permanent lactation room, although many do. If you don't have space for a permanent room, consider using an existing office, closet, or storage area on an as-needed basis, screening off an area in a larger space, or providing a car windshield cover or a single-person pop-up tent."
So I have no idea why the article is complaining that women only had a disused office.
We have a small space - large enough for a comfortable chair, a small bed, a smaller fridge, cabinet space for storage and sufficient floor space for someone to stretch out.
Not really that much of an expense, but it is something to make users comfortable.
It is also used by Muslim employees for daily prayers, and can be used if someone needs to "take a break" for mental health.