Whether it was verisimilitude or having an SRD that didn't punish third parties who used it, 5E was better – or at least not as bad – as 4E.
Yes my fighter can fall off a high cliff and always survive, yes he can never be killed by a single sword blow, yes a normal archer could fire an entire quiver of arrows at him and he would always survive, yes he would wake up the next morning back to 100% health, yes once per fight exactly (no more no less) he can act twice as quickly, yes three times a day exactly (no more no less) he can be lucky or make someone else unlucky, yes he can only get better at diplomacy by killing a hundred enemies...
...but when he misses someone he misses someone goddamit because otherwise it would be unrealistic.