The original version of the 'Else' condition did this, but it was extremely complicated to code, buggy, possibly performance impacting, and confusing to use as well (I forget specifically why, but I think it was for cases like OR blocks followed by a SOL-inverting ELSE start to get pretty hard to reason about).
I also want to avoid having two types of 'Else' condition, since this takes a nice simple straightforward event which beginners can understand immediately, to something you need to go sifting through the manual to understand.
Also the workaround is simple: just follow with the same event but with inverted conditions.