At some point that code has to be removed. They can't keep every old option and code path around forever, it's just not sustainable. There's a cost to using ou

At some point that code has to be removed. They can't keep every old option and code path around forever, it's just not sustainable. There's a cost to using outdated systems, and this is it. If you need it, you can proxy requests to upgrade their protocol to something newer browsers speak, upgrade the device in question, keep old versions of browsers around for those single purposes (and probably gap that device as much as possible as it's now a much easier target for attackers). Calling for all software to support all outdated options and code paths forever or even to always keep the code and flags or settings to enable it is absurd, and leads to unsustainable software that becomes impossible to change and improve.