those highlighted are numbers to its specifications. top megapixels, top resolution, top iso, etc.
whether the quality can be delivered is a separate issue. quality of pictures are the one being debated.
I think you just read the website halfway. Below I quoted from the link and you can also look at the graphs.
The above are based on hardware and raw numbers. Indisputable facts with some qualifications. From there, Sony and Strategy Analytics delve into less objective evaluation. Relying on the blind assessments of 200 UK consumers, the market research company pitted the Xperia Z5 and Xperia Z5 Compact against the iPhone 6 and 6 Plus, the HTC One M9, the LG G4, the Samsung Galaxy Note 4 and Galaxy S6, considered to be the top in the market when it came to camera performance. It probably shouldn't come as a shock that Sony's two smartphone always come at the top, whether it is for still photos or video recording, in criteria like image quality and autofocus speed.