I can very much understand the comparison between BOG and FP for Splash Mt. BUT, I think for us, that is still a game breaker. Usually, we wont wait more than 30 mins for a ride, I think on our last 2 week trip we waited 45 for Everest, but my wife almost killed me
Generally, we go early, we grab a FP, hit another major, without a big wait in stand by, then either head to our FP ride, or hit a second major THEN head to our FP, ... grab another FP for a major, hit some smaller rides, lunch, then back to the resort.
This is where I thought FP+ would be great, we could book 3 majors, sleep in, hit the park in the afternoon and ride FP ... except, all those other things I said after more thought, realizing it would take one bump in the plans and suddenly all those FP+ plans would be thrown off.
Its true that if we don't have FP+ for a major, we COULD wait standby, and 30 mins, doesn't sound TOO bad, still a little bad, but when the lines hit 90 mins, 110 mins, (SM was at 110 last night), we wouldn't do it. And if we don't get to do the rides, we wont enjoy Disney, and if we aren't going to enjoy it, there is no point in going. Waiting 60 or 90 mins for a ride would actually be worse then simply skipping it, which is why we would just skip it.
Like I said, maybe Disney is going to figure this out, and find a balance between FP+ and FP or Stand by. But by the -sounds- of things right now, it doesn't look that way. AND, the people testing it, aren't going to notice these major failures because the trial system does not expose them, it can't.