For this price I'd just buy a Cube Agree Pro.
And those "Sale" prices on AliX are getting out of hand in general 
+1
To be fair though, China is as capitalist as it gets, ironically. In the sense, here, that we can observe so many players trying to make money, differentiating. We can call it a healthy product category. You have OEM that keep doing their thing, invisible to us (on this forum we never hear of the truly large ones because they dont need our business), you have smaller OEMs that we do see (Long teng, Speeder), you have OEMs/actors that try to brand themselves (XMCS), you have clone peddlers (tantan), you have criminals (Yoho), you have Aliexpress "names" that are different levels of opacity and obscurity (SPcycle), you have Chinese "native brands" like Winspace, Yoeleo, Tavelo, that are usually directly associated with an OEM, you have brokers / middle men / salespeople (velobuild, lightcycling), and so on.
Point being: if people are willing to spend 3+k on an aliexpress bike from a shop that can disappear tomorrow, it's the market economy talking. I call it throwing shit at the wall, but i tend to be cynical. Tons of people want to buy a full bike, and have no idea about components. When you sell a full bike, you get to capture margins on every component, and you appeal to a wider audience. Economically, it makes sense.
Whether that's a smart buy for someone who's switched on is a different matter.
Aliexpress, in general, is going to shit, due to dynamic pricing, tariffs, shipping costs, and general macro instability.