10 years ago, this was a lot of data. It isn't anymore and it makes it that much more bizarre that they're having that much trouble getting it back. It would be less to just give them access and let them download it themselves and perhaps stick it somewhere else temporarily than to pay lawyers to deal with legal filings.
To put it in vaguely physical terms, what once was a university library is now a good solid bookshelf full of stuff. Legally wrangling over a huge library is one thing, but if it's just a bookshelf, metaphorically, let them come in for an hour and clean it out themselves rather than bringing in the law. Obviously not a perfect metaphor on data size, this is more about how lawsuits are more of a hassle then just giving it to them.
More like 20 years ago (sorry). 10 years ago this would have been slightly stretching, but not by much - 11x8TB raidz3. Shuckable drives would have cost $3300 (plus the chassis), and already out of the husk probably 1.5x more. So let's say $5500 total even back then. (I built my current array around the same time)
Funny, these days you could do it with 4 spindles (4x24TB raidz2) but with the rampant price inflation in storage, you're still looking at $4500.
A whopping 150GB!
I think they just put that stuff in so they could shill their affiliate marketing articles rather than out of any actual concern.