Yes I suppose. I don't think this incident is terrorism but there are non Muslim terrorist attacks and a lot of the time it is not called terrorism.
That's true, but a lot of inconsistency and intellectual dishonesty going both ways on the "terrorist" discussions, and you end up with a game where both sides over-exaggerate or under-exaggerate circumstances in order to try to compensate for the inconsistencies of the other side, and it just ends up in an endless cycle.
One side is specifically trying to highlight all of the Islamic terrorist attacks to prove a point
The other side is intentionally watering down the term "terrorism" to try to compensate for that
For example, the argument we hear about the FBI statistics showing that most incidents of terrorism come from right-wing white groups. And many on the left side of the fence are quick to bring that up in discussions about Islamic terrorism, and uses that as a basis for accusing the other side of having a double-standard. The old: "well, why are you more afraid of Muslims, more incidents come from right wing groups, why aren't you more afraid of them, are you an Islamaphobe?"
The issue with that is that the term "terrorism" is used very broadly and not nearly granular enough. "Terrorism" is used for everything from spray painting a hate symbol on a church, all the way up to a mass shooting. Reasonable people can acknowledge that one event is quite a bit scarier than the other. However, in discussions about "terrorism", certain people act as if you're not equally outraged by both, you're some sort of hypocrite.
And just to preface what I'm about to say next...any of the right wing, evangelical, GOP, Christians can attest to the fact that I don't go easy on them (many of them dislike me quite a bit lol), so I'm not playing favorites here or have a bias in favor of "their side"...but with that being said, anyone being honest and consistent knows why people are more afraid of (or more sensitive about) Islamic extremism in present day compared to other forms of extremism.
Islamic extremism tends to cause more problems, tends to have a higher level of lethality, and tends to be scarier than the other forms. Now that's not broad-brushing, or being bigoted against Muslims as people, that's simply addressing a reality that reasonable people could acknowledge.
If there were 50 incidents in one month people spray-painting swastikas on churches in my city, that's not nearly as scary or impactful as one bombing in a local establishment. Even though the "official tally" is 50 to 1, your average person is still going be more afraid of bombs more than spray-paint and therefore have a more negative stigma against the latter group.
...and while it's true that folks on the right wing try to over-demonize Islam as a result of these sorts of things, it's fair to point out that the left wing often tries to paint false pictures as well when they perpetuate ideas like "only a small tiny fraction are radicalized, 99.9% are just peace loving moderates" which are demonstrably false.