Preeeety sure KVD does just fine with modern electronics and fish finders, trust me. They're a tool that every elite series pro almost certainly knows how to use with confidence.
KVD is a professional angler, he has to adjust to fish his strengths on any body of water the tour may be stopping at. This last tournament, at Lake St. Clair, is his favourite place in the world to fish; he's fished there a lot, knows the lake. He just isn't catching them as well this year, not making the right decisions, I guess. An exception would be Kentucky Lake, where he finished in the top 5 fishing deep and not sometimes utilizing a slow presentation. I don't think he was fishing cover either.