Can't reproduce, both projects appear to be able to run on my computer. Construct 2 has no hard-coded event limit - it technically can support any number of events, even far over 10,000. So I think you've reached the point where you've got so many events your computer is running out of memory, and by coincidence that's happening at the 10000 mark.
Your events are ludicrously wasteful. The problem is not Construct 2 - it's the fact you are designing your project in just about the most inefficient way possible. You should be able to design a project like this in well under 1000 events - less then 10 times as many events as you've already got. Construct 2 provides lots of features specifically designed to help you avoid repeating events in this manner, such as Families, loops, and functions. You should use them. While Construct 2 supports more than 10,000 events, it does not make it a good idea. In my opinion, any project going over 5000 events probably needs a redesign!