It's technically correct, sure, but it immediately biases someone's view of the incident in a way that misses everything else of importance, like the fact that he was purposely antagonizing ICE agents or most importantly was armed while being detained and resisting arrest. It's also technically correct to say George Floyd was an unarmed black man who died in police custody... While leaving out the fact he was a violent career criminal who was apprehended commiting a crime and overdosing on fentanyl and meth at the time.
I actually agree with you, I think it was poorly phrased, personally I prefer the term disarmed to refer to the victim in this case, as it shows that (1) he had a weapon, and (2) that weapon had been removed from his person at the time when he was shot. The antagonization of ICE agents is undeniable, he was clearly there with his protest buddies making a ruckus, but whistling in the first degree isn't grounds for detention or arrest. Frankly, the interaction was entirely unnecessary, I would expect Feds to know better than to engage with purposefully disruptive leftists.
Also on the resisting arrest point, that's a little iffy, the guy never attacked or made any violent gestures towards the officers, he had been maced to hell and back, and had fallen over as he was being pulled in about six different directions and there was already someone on the ground.
I fully support the actions of ICE in removing illegal immigrants, I think this is wildly overdue, however, I still expect them to be reasonable in their actions and to have restraint when dealing with anyone. To give anyone 47 ish — Some sources say 3 weeks, unsure of the true amount, please do correct if I'm wrong — days of training and send them out with a gun in a policing capacity to undertake mass deportations is bound to end badly, especially considering how politicised the issue has become. Increasing standards is a net benefit for everyone, and most importantly, prevents giving the open borders people free ammunition to use against the right.