I didn't intend to make a statement about the programming effort required. I wanted to contrast it with corporate politics at CPU vendors, from which it is largely decoupled. Given the size of the task, it needs corporate funding, just not from x86 vendors. For example, we're fairly strongly incentivized to make valgrind support for any potential future x86-64-v4 transition because our development community really expects valgrind support as part of the core toolchain.