There is a very defensive tone to the responses from Toontrack on this issue. Given the cost of the product and high profile nature of this product, I don’t think it is unreasonable for users to request resizing of the interface.
We can understand that a resizeable GUI may not be easy to do. But there are stopgaps short of a full rewrite which allows the interface to be set at any size. Providing at least one additional fixed size option in addition to the original size would be a step forward. I am surprised and disappointed Toontrack has not done at least that.