I mean, its econ/business lingo.

Its not an argument, its just a description of what is happening.

Weak demand pretty much means 'less people are buying this thing'.

Its a pretty well known phenomenon that if you raise prices too high, or all your customers become broke in some other way, have their purchasing power diminished... that's referred to as 'demand destruction'.

You could also destroy demand if you maybe worsen the quality of the thing you're selling, but keep the price the same or even raise it.

(cough AAA video games cough)

But, but... I will give you that this kind of phrasing does sound, to the average person, as if it is grammatically obscuring what's going on, or shifting the blame to consumers.

A lot of business/econ lingo is subtly insidious in that way.