Hi Mike,
I actually did raise an OSS Incident shortly after my original SCN post on the problem and was told that all variations of SAPUI5 quirks could not be supported. The root cause of the problem is actually very clear, as Tanguy has pointed out in terms of the bootstrap loading steps. Given the emerging emphasis on the Fiori style, hopefully the Design Studio Team will reconsider this issue and correct it in a future version or patch.