I'm using Edge since beta versions etc. and as an internet user and developer with over 17 years doing web stuff I have few comments to share about Edge Animate.
In short I don't like it, I don't see any purpose of it.
First of all we have Flash that can do ALL that and beyond that, what Adobe should have done is implement better export options for Flash and problem solved.
Edge Animate 1.5 has so many issues that i don't know where to start, from GUI (user interface) to all those functions, bugs and problems...
To consider there are much more Flash developers, designers, animators than for Edge Animate, so you would think that it would better to make it similar to Flash for those devs to better understand its functionality.
I don't know who works at the Adobe, but I could write like 30 maybe even 40 pages just explaining what is wrong and how it can be better, and you have people on salary there perhaps 50 of them working on Edge Animate who couldn't figure out all the issues...
I truly don't know where to start Flash's timeline is waaay better, much more advanced, much more flexible etc..
Simply you can't compare Edge Animate with anything, except with Flash version 2 or maybe 3.0 from the 90's, I've red few articles online already about that, offered coding option is so much similar to ooold Flash 3.0.
I have no idea why the waste of time and money developing something new from scratch, when you already have top notch professional tool that should have been upgraded for better HTML5 export or JS.
TIP for Adobe: If you really want to continue working on Edge Animate and not make same mistake as LiveMotion, get proper expert for positions of project manager or product manager, because current one(s) don't see the obvious mistakes in first version, and I do belive that with those salary some folks do have some experience that are hired to work on such product...