Based on available data I would favor the SVS SB-1000 over the WiiM Sub Pro, yes.
Simply because SVS SB-1000 can play down to 20Hz in-room, which by all accounts WiiM Sub Pro can't reach.
Not all media has content that deep down, but some does (including music) - and it is great being able to hear it when it's there. SB 1000 can probably also play louder than Sub Pro (having a bigger woofer), but we'd need to see CEA 2010 data for the Sub Pro to be sure.
WiiM Sub Pro on the other hand has DSP and wireless connection capabilities which may be important in some use-cases, so I can see how that is appealing as well.