Twice a week I am asked "why don't you add new cool feature to ExpressProfiler?"
The answer is as simple as ExpressProfiler itself - you should always keep things as simple as you can.

Should be balance.
On one hand you have nothing that requires nothing and does nothing - perfect minimalism.
On the other hand you have standard SQL Profiler - it does all and requires all.

Express Profiler should be as simple as possible, so you could easily copy and use it; and as useful as possible so you would be able and wanted to use it.

And yes - sometimes I simply too lazy to implement feature request.