It's a wash. New employee = no lost time, no imposition.
Not really a wash. It costs them nothing to ban products. New employee= interviews and a reduction in head count until the position is filled. In my workplace it takes a long time to find another skilled employee, and it means projects have less resource to complete the task than planned for when a person is let go. Bell maybe different, but I'm sure they have some employees that aren't easily, or rather cheaply replaced.
It makes more sense- :lol: - to look at fragrance issues on a case-by-case basis, but that again means more time for someone like an HSE manager to investigate, and likely consult with experts. More costs.
Lastly, courts don't discriminate between psychological or physiological when it comes to harm. There's plenty of cases out there with respect to lawsuits, there is even laws, and in Canada the human rights tribunals. These have also helped to expand the number of no-scent workplaces.
And, while the number of people with physiological impairment may be small, like in asthmatics, it's still a significant cost to employers.
The total ban is really the cheapest and most cost effective option. Far lower risk of encountering unexpected costs.