not worse really than si/di/2d combo screens. its just reducing the learning curve and a little easier, unless youre garmin guru.
itll make folks more apt to changing their tactics to catch more fish more so than take the word of someone who has done it for 40 years and learned the hard way, ie. casting to fish more than sticking a dozen rods in front of them or following roaming schools around and casting to them, or how easy it is to spook the bigger fish, or that black crappie are an entirely different animal than white crappie. notice how a lot more black crappie are being caught now after LS was introduced.
imo, it also allows more younger folks into the pro bass tours that probably would have never had a chance without it, albeit the pro tours has become more of an expensive hobby more so than a profession in the last 20 years.