The people who post here are a small, rather unique sample of the guests who visit WDW. As much as some want the parks to be more like the local Six Flags where little to no planning is required and almost no one is willing to pay for an express pass, WDW does not fit that mold. Visitors making that once in a lifetime trip at great expense actually want the ability to plan their experience so they have the best chance to see and do all they've heard about on TV and from family and friends. After using both systems, I thought FP+ achieved this goal better than Genie+, but it remains to be seen how the average guest responds to the new system.
It's too early to get a good sample of people who used both systems, so a lot of what we're hearing is opinions based on others' reports of their experiences or assumptions about how Genie+ and ILLs will work once the system has had some time to settle. "What people like" vs "operations as a whole" may work at places people are required to be (airport, hospital, DMV), but I don't believe it's going to work well for people's vacations. If they don't like the experience, they won't come back - or even worse, they'll tell others not to bother because the experience was not worth the cost. Having a system that makes no one happy is not the way to go for WDW and I think Disney knows that. It's too early to say, but my guess is that there will be a very different system (or a radically changed Genie+) in place just a few years from now.