iMessage I get (and yes, that's a very compelling reason to 'jump ship' for many just because it's so ubiquitous, although better alternative services exist). Handoff is nice, but also with Android alternatives (although not as effective and 'clean' as Apple's and how tied they are to their own ecosystem).
Airdrop is definitely NOT a feature I'd jump for, especially since you have SO MANY MORE options (including Airdrop-like features) to do that and more in Android. Not sure what the author of the original article has been doing, but it's super easy to do on Android, and it works across way more devices than it does on the very closed iWorld.
Apple Pay, come on! Are you kidding me? Samsung Pay is so much better, Android Pay is just about the same (with even more card support) as Apple Pay. The first works nearly everywhere and the latter will work wherever Apple Pay works, so nope, Apple Pay is NOT a feature I'd jump for. AT ALL. If you haven't yet, try Samsung Pay. THAT'S a payment system worth jumping for (but make sure you try it in 'normal' terminals, then you'll see).
Updates are getting better on Android, but yeah, they're not as 'good' as Apple's, but only because how tight Apple keeps their OS. Also, you get the same OS (for better or worse) no matter what device you're using... which means your iPhone looks and feels the same (let's be honest, it does) as it did 10 years ago. Android gets customization galore, but at a cost of update delays from tinkering. No free lunch.
A BIG feature, however, that always has me on the edge of 'switching' is precisely that: Switching...devices. On Android you don't get nearly as good as Apple. iPhones do that so well, hands down. Back up old device, fire up new one, restore...done. Files, apps, saves, settings. Everything is there. No 15 different apps and services needed. Android does have A LOT of work to do there. If Google wants to be cloud-centric, then they need to force all apps to keep cloud saves.