piotr
if it's not done properly, engine-failure-after-take-off training can be more dangerous than the real thing"!
As opposed to (SE) PFLs
Every CofA renewal both engines are shut down (not at the same time) and restarted inflight - it's part of the renewal.
Practising shutdown and restart at altitude within glide of an airfield is no more/less dangerous than PFLs.
I'm sure there are stats that say it is. I'll find some that say it isn't.
I wouldn't do an unnecessary shutdown/feather at 200' AMSL at ORTAC.
No such problem at FL50 in the hold at BIA.