I'll clarify here for you.
Whilst I agree people do useful work relating to MacBooks in general, I do not find that this MacBook is worthy of purchase and outlined my reasons why. I do not specifically slate all MacBooks as a whole, but the general approach being taken on their design which favours consumerism over pragmatism, practicality and convention.
My comment derided the machine and branded it as only suitable for an unimportant segment of MacBook users who produce nothing of value with it and to whom it is a fashion accessory or trinket. It's analogous to the old comment about celery taking more calories to eat than it provides.
Is that a fairer deconstruction of the point?