I still don't see much use in any of these examples.
Take an event like this:
+ On Player collides with Powerup
-> Destroy Powerup
-> Add 1 to Player score
Suppose you somehow bind that to the Player object. How does it run then? As far as I can tell - exactly the same. So there doesn't seem to be any purpose to it. In other words, the way Construct picks instances already does everything necessary.
If you want to create different sets of events per instance, then I can see major downsides to that. Firstly it would have a high performance cost: Construct would have to re-run entire sets of events for individual instances, rather than picking sets of matching instances like normal events. It would be in the ballpark of having a 100x performance overhead if you have 100 instances, similar to moving an entire event sheet under a "for each instance" loop which needlessly re-ran everything repeatedly per-instance. Secondly it would seem to have a significant maintainability cost - you can no longer just look at an event sheet and know what will happen, now you have to sift through individual instances and review their logic independently; if you see an instance misbehaving, now you have to figure out which instance that is exactly, identify its corresponding set of events, and debug those individually. I have to say, that sounds like a nightmare! And thirdly, it's limited: which events run for dynamically created instances? There doesn't seem to be a good way to set that (and then imagine debugging that).
The current design of centralised event sheets shared across the whole project is deliberate: it's good for performance and maintainability. I'm not convinced anything much in this area would actually make anyone's life better. At best, maybe you could attach an event sheet to an object so it goes with it when you copy/paste it, but in all other regards it would work identically to event sheets now - but that seems to be something different to what people are talking about here. Still, I'm open to reconsidering if someone can clearly and concisely describe a really great example that explains why this is valuable and avoids all the potential downsides, but I remain sceptical.