It is now, for some of us it's reached a tipping point. The straw that broke the camel's back. Pick your idiom. So I think that this, combined with some of the other ongoing issues they have, are starting to hurt their business model, as you put it.
Of course there have been issues, always. We've certainly had the odd problem over the years, and it's usually been fixed with alacrity and good humor. However...
I can tell you that the 9 day trip we took a few weeks back was, bar NONE, the worst experience we have ever had at Disney. Judging from the long lines of people at the front desk having same and similar issues, it wasn't just us, either.
It was bad enough that we cancelled our two upcoming onsite trips, are letting our APs lapse, and we now have no future trips planned for WDW for the first time in many years. We are going to Universal for a week in September, and Yosemite and Jackson Hole in 2015; we will not set foot on WDW property again until we are somewhat assured that service has improved. I'll never say never, but I don't expect to be staying on that property again until at least 2016. And we have been a 2-3 trip per year family.
It wasn't just the broken tech itself. We had a lot of poor service. Worse than we have ever experienced at the WDW resort. Multiple times during the week we got to the point where we left property entirely. We almost checked out 2 days early. A fair amount of that poor service was because CMs were just overwhelmed and tired and not paying enough attention, partly because of the broken tech, and partly because service has been on a downhill road there for a while. (For example, we have experienced some rude and some extremely inattentive servers in the restaurants our last two trips, and that never ever used to happen. We used to love eating out at WDW.)