To do this in the immediate aftermath of Hamas murdering at least 700 people is remarkably bad judgement, to say the least.
It’s not remotely like putting up a Palestinian flag after the sustained Israeli bombings of Gaza in 2008/09 or 2014. It’s not remotely like putting up a French flag after the Bataclan or putting up a Ukrainian flag after the Russian invasion.
It’s incredibly pointed that it’s a public gesture of support for the murder of civilians by Hamas.