Modern corsair psu's are made by CWT, the problems with the focus psu's seem to be few and far between, but i'm told that the new gx/gm focus series have fixed this issues.
You are right. TImes have changed. This is what I found on the topic:
"ATM, Corsair only have three units made from Seasonic, or six if you want to count the TXv2 that still sold in stores (the TXv2 had been discontinued). That is the HX650v2 and AX760/860, which internally are SS G and X KM3 which I'd classify them more in the high-end segment.
VS, CX, GS, TX-650v3 / 650Mv2, and HX750+ are all made by Channel Well Tech.
The TXv3 / TXMv2 750 and above are made by Hipro. I'd classify everything TX and under basic, entry-level (VS) to mid-range (TX).
There are a RM line that's coming that is also will be build by Hipro
AX1200 and the entire AXi are made by Flextronic.
Corsair had been shifting away from using Seasonic."
This was from the beginning of 2014 but is the most current info I could find.