That it can be done is not in dispute.
Many of us have been trained how to do it if you must (someone is shooting at you or you're about to be washed away) or how to revert to it if you have to - brown out / white out.
But the simple fact that seems to be ignored here is that it simply was not necessary in this case.
The discussions about whether this was caused by a PC1 profile or by someone who could not do an (illegal) IMC takeoff like wot the military used to teach are just irrelevant.
This collision happened because the commander took off in poor weather and permitted themselves to lose visual reference and situational awareness leading to a collision with a building that had always been directly behind them.
Waffle as much as you wish about PC1 profiles and how the military do it.
This pilot took off in crap weather, lost their references and crashed into a building they should have known was there. That's nothing to do with a PC1 profile that they might or should have been flying and it's got nothing to do with a hypothetical IMC takeoff technique that they might have flown. It's got everything to do with command judgement and decision making.
There will be those that will say "well anyone can get cuaght out and you've clearly never been there and done that".
Well i have. I took off once in rubbish conditions that were more rubbish than i thought and i nearly killed myself on entering IMC before i expected to.
If i had it would not have been because i was flying the wrong profile or because i'd not been trained in the correct method it would have been because i made a foolish decision.
I should explain that i survived because i had been properly trained on how to recover and - belatedly - applied that training. If i'd applied the training in full i'd not even have started the engines.