Yes we have a different perspective and in theory there's no...

Yes we have a different perspective and in theory there's no such thing as truth or morality (refer Avatar) - neither of us should be right wrong or emotional.
However in practice I am convinced of my perspective as it is rational and works, that's pretty important too.
It's certainly a fact that impairments of WIP have trashed the market capitalisation but it's likely that just as the market once overvalued the business now it is undervaluing it.
Through it all there has been a central value that a purely hypothetical "efficient market" (that never existed in this universe of flawed humans) would value the business at.
Say you are right and AASB requires a further impairment, given the market is valuing the company at almost nothing I would argue it's already in the price.
When the price of any stock is low I hear people convincing themselves not to buy it, at least your reason is more credible than worrying about Trump, North Korea, Quantitative Easing or China.