I'm glad you brought this up, I noticed the same thing on Itch! I had lots of initial interest when first posting the game page, and just like you, a few donations for the free demo, lots of positive comments, etc. However, on release, very few views. A wishlist button would be great--they really should do this. I have my game on Steam as well, and so far have over 600 people that have wishlisted it (I think they're waiting for a sale, or maybe more reviews? Hard to say.) But at least I know people are interested and have noticed it. I feel like getting noticed on Itch is difficult after posting in new releases.
Interesting that you tried it the other way with your Balloonys adventure game. It does feel like timing is key. I think Thursdays-through Saturdays are great for game releases. The rest of the week--not so much.
I like your suggested for animated gifs on Twitter. I definitely need to do more with animation. I've tried linking youtube videos there, but somehow, mine never play, they just show up as links. I've seen people posting on twitter with high-quality videos that loop in their post. I still haven't figured out how to do that.
I liked your trailer, and felt like you got into the gameplay quickly, but I do see what you mean about a small delay before it really gets going. Good point about a video being instantly eye catching. The problem with my trailer is that the audio voice over begins with a static star background, and the "action" doesn't start until after she finishes her first sentence: