I think it is totally due to very low ability of 代理D“師苦”. As you may know, MF and Dynaudio are the same 代理. I have experience in repairing my Dyna A42 speaker, I'm very unsatisfied with their repairing work. They make my speaker has scratch after repairing (luckily the scratch is in the bottom). Also, I think the technician has hearing ability problem, they cannot aware my speaker has problem. But obviously 2 speakers sound different. If you have met the 代理D“師苦”, you will know that he is not a HIFI specialist, he is only a electrical technician.
If MF and Dyna keep on under this 代理, I will never use them no matter how good the product is.