Yeah for me the pc’s are still powerful and are likely to win the day. It’s hard to die in 5e.
It has not been my experience that it's hard to die in standard 5e. For that to be the case:
1. You have to be running at level 5+, certainly at 3+. But there are plenty of low-CR critters that can down a full hp level 3 PC in one blow. Or crit and insta-kill a PC at low hp.
2. The GM is sticking to the DMG encounter building rules, and not using much over minimal-Deadly
3. Monsters don't finish off fallen/0 hp PCs
4. The players are fairly skilled at running their PCs.