of course they didn't, but there are those that draw the correlation that since the merger with Enix some of their most hated/reviled games have come out, and therefore must be the fault of Enix... for example, FFX-2, the Compilation of FFVII, or the FFXIII FNC saga... personally i like all those games i listed, but i can not deny that those are the sentiments i have been hearing from others since the Square-Enix merger and the release of FFX-2...
i may not agree but there are those out there that truly believe it's Enix fault Square has "gone downhill"... i myself prefer to see the company progress and try new things even if they aren't amazing ground breaking works... i loved Crisis Core and Advent Children, i loved FFX-2, and the FNC Saga, despite all the hate those titles get, they tried something new, they dared to be different, and i loved every bit of it... but there are those that hated it and trace it back to the merger...