So I was just practicing some stuff on my own and I've come to discover that using the c-stick to jump out of shield into other actions is actually a lot easier than I originally comprehended. Doing a short-hop upair out of shield is really easy, just hold shield and hit up on the c-stick twice really fast. Doing a full-hop dair out of shield you just hold shield, hold up on the c-stick enoguh to make you full hop, then hit down on the c-stick and it feels really easy and fluid. You can even wavedash out of shield using the c-stick. I feel like if I practice this more that I can get really proficient at it. I feel like this could be very useful vs Falco when you want to shield his lasers, and when you hit the c-stick while in shield, you'll buffer the move you want to do, so if a laser hits your shield and you hit up on the c-stick, this means you'll jump out of shield the earliest frame out of the hit-stun and you can upair falco to punish him if he's close, or wavedash towards him to close the gap. You can even keep holding the shield during all of this so when you land, you're once again shielding.
This doesn't make Ganon's OoS options any better, but I find this method to be an easier and more consistent and efficient way for myself and my fingers. upair comes out pretty fast, being the fastest with it would make for a great tool.