Bottom line is that Universal is taking what they call their "third gate" and limiting entry to really one point of access, while the other two gates have three. That's what makes Universal Orlando great... proximity. I can walk, boat, or bus into the parks, that's my choice - and a huge reason as to why people choose to stay on site. Paying for convenience is a priority for consumers in 2017, any validated study will show you that. Volcano Bay doesn't offer the same, which should have been a fundamental principle of designing these expansion plots. Clearly, they think otherwise.
It's probably easier and quicker for me to stay at Sapphire Falls and Uber ($15 private ride for a family of four) to Typhoon, Aquatica, or Blizzard than it is to make the trek to Volcano Bay. That's the core issue here.