Jester David
Hero
Well, no.Yes, I suppose it's in the interpretation of issuing a command and how long that command stays in effect. They removed the phrase that said it doesn't take an action unless you command it but they retained the definition of a command being required to attack.
You spend an action to command it to take an action. Not to beginning attacking or start targeting a creature. The language would be very different if that was the intent.
That's most games in general, because what's "common sense" is often up for debate. It doesn't make sense that a sword blow that would have killed someone at level 1 is a scratch at level 10. It doesn't make sense that heavy plate armour makes it easy for you to dodge bolts of acid. It doesn't make sense that you can survive a 100 foot fall. It doesn't make sense for a trio horsemen riding side-by-side to occupy thirty-feet.I'm not in favour of technical language overruling common sense. If a handler commands a trained animal to attack someone, it will continue to attack until commanded it to stop or until it is hurt and decides to retreat. Once commanded, the beast should follow that command until it can't any more. At that point it takes the Dodge action until issued a fresh command.
So we generate a fiction to explain the disconnect between the rules and common sense.
You can argue that the rules are wrong. You can suggest fixes for the rules.I feel sorry for anyone whose DM can't see that is the most common sense interpretation. Like you say, the animal won't stay conscious for long so it's just a flavourful damage spike like paladins burning spell slots.
I have added house rules to beastmaster (the beast shares the effect of Hunter's Mark and the ranger gets the Revivify Beast class feature to burn a spell slot to cast a Revivify spell on a dead beast companion, and at level 7, I added advantage on the beast's saves if it fan see the ranger) but I would not consider my interpretation of the duration of a command to be a house rule. It's common sense. ;-p
But something not "making sense" doesn't change the meaning of words. It doesn’t alter the rules.