Sorry but I think you’re wrong, depending on which shoe you’re talking about. I can speak directly about the Adios Pro 3 as I’ve put a lot of mileage on those. I would absolutely never recommend this shoe to a heel striker. Narrow, firm heel, zero stability add ons, high stack, etc. I would think running downhill fast in the Pro 3 being a heel striker would be a scary experience.
Other shoes like the Alphafly v2 can easily accommodate heel striking.