Hi Askhat! Thanks for the feedback, these all seem reasonable for the most part. I think shaders and exporting to mobile devices will be more involved and come later than the others, but are features I can look into down the road (in fact, mobile device export is already on my Trello "planned" list, as I think Godot 3.0 will have better support for these platforms).
I'll likely come back to you once I'm further along to get some more details and examples around this feedback! :)
Thanks,
Justin