Keynote is absolutely the presentation software a designer would create, if they didn't have to do it while being saddled with inappropriate technologies.
I'm a pragmatist and I understand why collaborative editing and web-based "files" won out...but when you use a well-crafted piece of desktop software like Keynote it really makes you wistful for what might have been. People have forgotten how much of a hole you dig for yourself in when you have to build everything in the browser.
You prompted me to try out the little-known web version of Keynote on iCloud.com. I expected it to be surprisingly good if not quite up to the desktop standard, since Apple's front end web teams do amazing work. And sure enough, that's what it is.
I focused on animation features and it has most of those available in the desktop version, but it's missing a few (e.g. action build effects). It's also missing some of the image adjustments. But it's got Magic Move, and shape subtraction/intersection[1]. Most importantly feels pretty good to use, though it takes a while to load (on Chromium). I've no idea if they implemented that inner-detail object alignment - don't have an easy way of testing it.
My only counter to this is that after, what, two _decades_, Apple _still_ has not added the ability to adjust number boxes with the up/down arrows on the keyboard (like text size for example). A designer would have included this on day 1, it’s such a common UI pattern in design tools.
If anyone on the iWork team is reading this, _please_ get to that Radar.
I'm a pragmatist and I understand why collaborative editing and web-based "files" won out...but when you use a well-crafted piece of desktop software like Keynote it really makes you wistful for what might have been. People have forgotten how much of a hole you dig for yourself in when you have to build everything in the browser.