Once you make your 'x86' incompatible enough that it won't actually run glibc fully, you've negated the whole point of having x86 in the first place.
Intel's "strategy" with Quark etc has been to to sell you on the idea of a ubiquitous platform, and then provide a niche platform that looks "mostly similar" to the ubiquity you were promised.
eg, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=738575
Once you make your 'x86' incompatible enough that it won't actually run glibc fully, you've negated the whole point of having x86 in the first place.
Intel's "strategy" with Quark etc has been to to sell you on the idea of a ubiquitous platform, and then provide a niche platform that looks "mostly similar" to the ubiquity you were promised.