There is a contradiction in what you’re saying here. Everyone is entitled to their opinion unless it is a critical opinion.
The comment gives sound reasons for not liking the poem, it does not resort to the kind of cheap shots you describe. (Which by the way don’t really qualify as criticism)
Without critical perspective there would be no such thing as great art. We need more critical thinking, not less.
To add some perspective to the price point. In New Zealand we hav 15% sales tax, plus the exchange rate. The purchasing power of the NZD when adjusted for earnings etc is pretty close to even
Which is a silly way of saying, if you think the pricing looks daft where you are, it costs almost twice as much here!