Apologists (and thankfully there are very few regarding this) will minimise things when it comes to criminal acts.
And yes, it wasn't just a tree (as I said previously, that it was a tree is besides the point), it was a beloved thing, and that thing was destroyed because it was beloved.
An individual(s) thought, "that thing is beloved, so I will destroy it".
We know they thought this because the thing they destroyed was famous as a beloved thing, you couldn't not know this. It wasn't just some random act where an object was plucked out by chance. They purposely, with great planning, in a remote location needing travel and tools, targeted a specific object, knowing the damage they would inflict. It was premeditated, thought out.
To destroy something because it is cherished, is the act of a sick, twisted, spiteful bastard.