I do understand it.
It was surely an issue for the companies that were brought to the WRC despite exercising their supposed right to say no. Why should a company have to waste this time.
These laws grow legs and tentacles after a while.
Your posts demonstrate zero evidence of that, having to be corrected by multiple posters as to its content.
Companies are brought to WRC for cases all the time.
Should we abolish the WRC?
Abolish all legislation protecting employees?
Companies should be treating staff fairly, and that includes with regard to working from home policies.
If they have a blanket no WFH policy and can support that with foundation, there is nothing in the current legislation that will interfere with that - or at least, after half a dozen times of asking, you've provided zero credible evidence of.
You obviously have some ideological issue with the concept of WFH.
You've been unable to provide any evidence for any of your claims.
There are wider considerations with regard to working from home which governments should be mindful of, less strain on costly transport systems, commuting impact, childcare, health, work-life balance etc
If a company can provide data as to why in office is needed, that is one thing, and it therefore has nothing to be concerned about from the legislation.
If it cannot, and it is pig headed enough to press on demanding in office, that's on it, and it doesn't say much for its global competitiveness. And if it costs a few of those such jobs (likely to be here today gone tomorrow regardless), balanced against other considerations, that is a call for governments - and not just here - to make.
You'll have to do a lot better than, slippery slope \ some American companies might have an issue with it hypotheticals.