Unfortunately; Yes - this is all the result of DxO’s (very poorly thought-out) decision to conflate (= merge & mix-up) Color Accentuation and HSL.
I suspect the issue that DxO were aiming to deal with, via this change, is that there were (with PLv6) actually two separate global Saturation settings; one via Color Accentuation + another via the global channel in the HSL tool … which, no doubt, was complicating coding logic.
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All the same, it would have been a much better solution to have simply disabled the Saturation slider for the global channel in the HSL tool … and then Color Accentuation could have been retained;
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This would have been a “cleaner” change - without the consequences of PLv7’s implementation