Why/how would a NAS use Thunderbolt support?

Browsing NAS drives, I came across this one from QNAP which...

features both 10GBASE-T and Thunderbolt™ 3 high-bandwidth connectivity for tackling heavy workloads and smoothly transferring, displaying and editing 4K videos in real-time

I thought Thunderbolt was used to connect peripherals and had only short range. So is the idea someone puts this drive on their desk and just uses it like an external drive? Struggling to see the use-case over Ethernet, can anyone clue me up?

As you can only get Thunderbolt 3 to travel half a metre at full 40gbps speeds, that's how it would have to be done.
Ref: https://blog.startech.com/post/thunderbolt-3-the-basics/

If you want to drop to 10GBase-T then you're down to [of course] 10gbps, but up to 100m.
Ref: https://en.wikipedia.org/wiki/10_Gigabit_Ethernet

Most user Ethernet these days is 1/10 that speed, at 1gbps.

^{Not sure what they're doing with the TB3 on that QNAS, but it's not running at the full 40gbps anyway, only 10.}