Referring to Ep's as a reference for 'being safe' isn't a very good judgement. Unfortunately the specific examining criteria from what both the company and the regulator expect isn't very high.
Shouting 'commands' and operating a door isn't rocket science. Being able to manoeuvre one's body through a hatch/door at a practice event every 6 months doesn't necessarily reflect what one would do during an event.
Sadly, the quality of EP instructors isn't increasing. Many prefer the easy way out with turning a blind eye as opposed to taking someone offline for their inability to perform due to physical proportions. Let's face it, it seems the easier way out instead of having to deal with unions and cabin crew manager blowins.