Even with the heavier DAO trigger pull on smaller automatics, I’d stay away from ANY holster that offers no trigger protection, unless you carry unchambered.
The hole is so you can pull out your "wallet" and pull the trigger. Without that, it's just another pocket holster.
I hear you on the caution issue, but from personal experience, the trigger pull on the Ruger LCP is sufficiently heavy that it's not going to go off unless you want it to.