Do we have an explanation why they have (apparently) performed so much better than SQ in the limited time they have been at MAN?
Only speaking from personal experience, but a year ago I had a minor (ground based) issue with SQ at MAN and was met with complete intransigence. When a similar issue arose with CX at MAN, it could not have been resolved quicker.
Hence most of my Asia bookings are with CX and not SQ. The only problem with CX is frequency, and that will also be soon resolved.