Oooh - here's a nuanced take: I'm tentatively a data centre advocate. At least the data centre of the sort in the article's pictures. That's a NextDC data centre. Those are different to all the AI ones being spawned recently.
The way NextDC works is they take all server racks that used to live in business' server rooms and put them together in two locations (Most cities have two for redundancy). Such data centres have been around for decades. We had a data centre in Perth in the mid-90's, though it was tiny/basic by today's standards - today that organisation is called IIA and has data centres in every Australian city.
For the first 20 years of my career, every place I worked had a server room. Even tiny businesses had a token server somewhere in the building handling shared files and maybe company email. Today, that stuff is all hosted in data centres. All the Cloud buzzwords you've been hearing about for the last 15 years or so? Data centres.
The reason I advocate for these is they are more efficient. By sharing the infrastructure like power and water in one location, they use less overall than they used to when spread all over town. Because business pay a lot for every single rack they rent, they reduce their footprints as much as possible. That goes for the amount of power they draw, and how many racks they can get away with. When you own your own server room, you think nothing of having 15 racks of servers. When each rack costs tens of thousands per month to be located in a data centre, you get super efficient about using as few as possible.
This very site runs on data centres. Multiple vendors: Cloudflare, Amazon, couple of others. Though for all I know some of them are in the same physical data centre.
The headline however is about AI data centres, and yeah - I'm no advocate there. There's a gold rush at present to build immense infrastructure so that some businesses will be ready for demand that simply is not coming. Some AI will stay, but they are building orders of magnitude more infrastructure than is needful right now.
Edit: I just saw on the NextDC site that ChatGPT is going to host their Australian servers with NextDC. Sooooo I dunno what I think about that. At least they aren't building more data centres in Australia?
