Assuming that’s what this is about:
It would probably be useful for beginners or for people making really quick mockups, but I think generally a drag & drop editor wouldn’t be useful enough to justify the effort to make it work well.
The problem with a ‘collision’ true/false checkbox is that sprites and collisions are library and game specific.
With something like the UE4 editor or the Unity editor you can get away with those because those editors are targeting specific highly generalised libraries for making games that target computers with lots of available resources (thus they can afford to generalise) but the Arduboy has much less resources so it would be hard to make a generalised library without consuming resources unnecessarily. It would be alright for small games, but anything substantial would be better off being ‘hand-crafted’.
For example, a platformer might require a notion of gravity, but a top-down dungeon explorer probably wouldn’t so using an engine that implements gravity for a top-down dungeon explorer would result in wasted memory and processor time. Game engines for modern computers generally don’t care about that because they have lots of memory and processor time to work with, but for an Arduboy game that could be the difference between the game fitting in ROM or not. (I know that’s a somewhat localised and contrived example, but the fact remains that an optimal platformer game engine tends to look quite different from an optimal top-down dungeon explorer.)
To clarify, I’m not saying it’s an outright terrible idea, I’m saying that it’s problematic as things stand.
If there were more interest in it then such an editor could be justified in the future, but there has to be the demand to justify the effort. For example if there were an upsurge of beginners or enough teachers wanting it for teaching younger/less experienced students then the development of a block editor might be justified. (There would still be a long list of caveats and limitations, and it would be more of a learning tool or a means of making prototypes than it would be a tool for developing actual games.)
Ultimately everyone who develops for the Arduboy should aim to learn C++ to truly get the best out of the console. The reason block editors are so much rarer than programming languages is (partly) because programming languages are much more expressive and give the programmer a much higher degree of freedom.