There is nothing about antivirus that requires file deletion block on other processes including the antivirus. For one thing, you just said Windows has a simila

There is nothing about antivirus that requires file deletion block on other processes including the antivirus. For one thing, you just said Windows has a similar functionality available anyway just invoked a different way. Is that a way around Defender? It better not be. If it exists as something you can use, and yet still isn't a way around Defender, then it's silly to even be talking about Defender to justify this 70's behavior. The understanding of laypeople in how a multitasking operating system kernel coodinates a graceful teardown of a shared resource, or fails to in the case of Windows, has exactly no bearing on anything. Why isn't it exactly as reasonable to presume that "any lay person" would expect that they can simply issue a delete command and it happens, without having sit there and wonder why they're stuck and go worry about other processes that they didn't write and don't have any knowledge or control over? It is exactly as reasonable. And both are pure meaningless presumption, and don't matter anyway since the understanding of a lay person would be a ridiculous way to design the inner workings of ... anything, definitely including an operating system. These arguments are swiss cheese.