There's a Probable Downside to Bee Bus Stops

The idea of converting bus shelter roofs into miniature gardens, full of pollinator-friendly plants, seems to have originated in Utrecht (The Netherlands). There are now plans for creating more than 1000 of these 'bee bus stops' in England and Wales (https://www.theguardian.com/environment/2022/sep/24/bus-shelter-roofs-turned-into-gardens-for-bees-butterflies-aoe). Mini roof gardens, with wild strawberries, poppies and pansies, are an attractive proposition. There is, however, a problem with siting them in urbanised areas, like city centres. Butterflies and bees are frequent victims of collisions with cars, buses and trucks. The 'bee bus stops' might tempt them to their doom?