So the relevance to this article, I take it, is that you suspect this attack was not a use of white phosphorous for smoke or signalling, because in the past, when having been accused of using white phosphorous in a city, the IDF initially denied it but then admitted it may have been used improperly, and you are therefore skeptical of their good faith this time around?
Perfectly reasonable.
Does not justify labelling this a definite war crime which is what you and Amnesty have done.