Sorry but I just read this as nothing but tin foil hat, paranoid conspiracy ramblings. 'Could', 'Might', 'Perhaps' - all tentative language as people refuse to admit that 30 minutes of configuration later Cortana, telemetry, all apps, marketing etc can be gone. Sure, MS may issue an update that makes it impossible to do so. The Earth may also explode tomorrow. Lets focus on the now, shall we?
Once properly configured, W10 is nothing but a faster, up to date (Vulkan MGPU, DX12) version of W7/8.1, with the caveat that some effort (30 mins ish) is required to research and carry out the configuration. And no, GPE is not a requirement either.