Yeah, totally, I have the Adobe suite. Oddly my same reason for not using Animate is time.
I have a very specific workflow that is very fast, and I don't have a strong urge to explore others (major exploration over the past 2 years have brought me to my current workflow).
At the same time I don't want to ignore the mentions I'm seeing.
The real, real reason I'm skeptical, at least for personal use is... When I first got into banners/Flash I found resizes to be tedious when using timeline animation. I took to GSAP because I was able to recycle coded animation into resizes way faster than readjusting timeline animation. Resizes went from hours to an hour or less in many cases.
I ported that workflow into my hand coded HTML banners. I can do resizes super fast because I barely have to change anything other than my dimensions (of course there are other tweaks but 4 out of 5 times I don't have to do much).
Also, I use grunt and npm so I don't have to go outside my dev environment to compress images, make spritesheets, etc.
So, I'm not interested in Animate from a timeline animation pov because I've completely forgone timeline.
Conversely integrating GSAP into Animate, to me, is pointless because I'm already coding and don't see the advantage of adding another application into the workflow.
I also assume I can make a smaller banner in k size, by hand coding vs coding in Animate. Is this perception wrong?
I do understand that Animate provides a stage to work on, but I often don't need a stage. I don't have to position my assets in CSS because I make all my assets the same dimension as the banner (except special cases, like if I need to spin a wheel, etc). And I can do automatic spritesheet generation with spritesmith.
Please note, I'm not complaining about CC or others' workflow, I just wonder what the advantage is, and how common it is to use in the industry. I'd learn it so that it didn't preclude me from a large chunk of work.