Mixed classes upstairs 747

Hi a friend of mine recently asked Virgin what there thinking was in mixing premium and economy passengers in the bubble of the 747 I thought it worthwhile showing their response as it seems a bit weak, your thoughts please, I think they may have gained the extra economy seats by reducing the downstairs premium section
"Thank you for your email regarding your recent flight with us . It’s clear from your email that you feel we’ve let you down in relation to our new seating layout in the upper deck of this aircraft and for this I wish to apologise.
The aim of these refurbishments were to match the current trends and demand that our customers have told us they wish to see on board. In recent years it has become clear that there is a reduced call for Upper Class and Premium Economy and a subsequent increase in demand for Economy.
We receive on-going feedback about the changes we have made to the Upper Deck on the Boeing 747’s in question, when perhaps some feel that it would be better to be kept exclusively to the higher cabins. In theory this would be the ideal situation for all. However, it is for the time being no longer cost effective or practical for this to continue. I will point out however, that we do not necessarily foresee this to be a long term scenario, and that this layout has not been rolled out to all of our 747 aircraft.
All the departments and staff both on the ground and in the air have worked hard to ensure that the same quality of excellent service is provided to our passengers on the upper deck. I can only apologise again, if you feel that this was not the case on this occasion.
In closing, may I reassure you that at Virgin Atlantic, we passionately believe in our product and service and want to make sure our customers feel the same. I know that your opinion of us may have been lowered by this experience and I want to assure you that this certainly was not our intention.
Your custom is very much appreciated."
"Thank you for your email regarding your recent flight with us . It’s clear from your email that you feel we’ve let you down in relation to our new seating layout in the upper deck of this aircraft and for this I wish to apologise.
The aim of these refurbishments were to match the current trends and demand that our customers have told us they wish to see on board. In recent years it has become clear that there is a reduced call for Upper Class and Premium Economy and a subsequent increase in demand for Economy.
We receive on-going feedback about the changes we have made to the Upper Deck on the Boeing 747’s in question, when perhaps some feel that it would be better to be kept exclusively to the higher cabins. In theory this would be the ideal situation for all. However, it is for the time being no longer cost effective or practical for this to continue. I will point out however, that we do not necessarily foresee this to be a long term scenario, and that this layout has not been rolled out to all of our 747 aircraft.
All the departments and staff both on the ground and in the air have worked hard to ensure that the same quality of excellent service is provided to our passengers on the upper deck. I can only apologise again, if you feel that this was not the case on this occasion.
In closing, may I reassure you that at Virgin Atlantic, we passionately believe in our product and service and want to make sure our customers feel the same. I know that your opinion of us may have been lowered by this experience and I want to assure you that this certainly was not our intention.
Your custom is very much appreciated."