Summoner is doing too much in 5.10

[Myon88]

Everlasting Flight is a passive buff that actually do more healing

Not good enough, you don't look solely at pure throughput to determine the effectiveness of a heal. Vercure is not only targeted but also on demand which puts a massive premium on it. If you're on fire, you don't put it out by standing in a drizzle, you need someone with a hose. Take ucob for example, with vercure you can spot heal people that the healers might've missed and save them from the upcoming gigaflare. This is one the most common gimmicks in the entire fight and vercure pulls its weight every time. Erase, that tiny ogcd heal role action that most people probably already forgot existed, was a more effective summoner healing tool than everlasting flight.

Swiftcast is wholly insufficient to compensate for what dualcast can do. People die frequently or in multiples all the time when learning a fight, far more than the minute's cooldown on swiftcast can keep up with.

You're welcome to value summoner's utility tools however you like, but I venture I've more experience in high stakes raiding than you, so I trust my judgment far more. In fact, when alex comes out next week, I'm going to be heading in as rdm until we near the enrage - as I imagine the casters of most good groups will be doing.