These UEFA penalties though change games & determine who wins which is wrong if a ball is blasted at you, historic hand ball law was a hand ball had to be deliberate, why move the dial so much?
Well, if we want to be picky, historically it was intentional, and that changed into deliberate at the same time CREF was introduced.
But deliberate (like intentional before it) was always a bit more than the dictionary definition might seem. (And as far as I can tell, contrary to how some people try to tie things to the word deliberate, there was not a change in application when we moved from intentional to deliberates.) unnaturally bigger came about as a descriptor of a kind of deliberate handling—deliberately leaving an arm somewhere it could be fortuitously hit to gin an advantage. In other words, it was to explain how to catch the sneaky offender.
IMO IFAB jumped the shark when it tried to put in lots of (poorly framed) specifics in the Laws—it created confusion. Alas, when they dropped that failed attempt, they felt the need to redefine “biggering” as something that was not deliberate rather than as a way to explain something that was deliberate (at least in the sense of not taking adequate precautions to prevent it). That was a huge mistake, again creating confusion. And there seem to be behind the curtain attempts to give guidance to take judgment away from refs and apply formulas. Now some think that any ball that hits a body part first cannot be a handball. But that isn’t (and shouldn’t be) a black letter rule. It often is a good a clue as to what the player was trying to do—but a player can be deliberately putting an arm somewhere to unfairly take up space and touch with a body part first.
All that said, I am with you that it should be deliberate (and sure we can throw in that “attacker who scores” exception if it makes people happy. Handball, like too many things, is trying to make the subjective objective in a way that doesn’t really work. (Though I would be curious the extent to which IFABs changes have moved the dial I. South America where it had become pretty close to any contact was an offense, and part of IfABs objective, supposedly, was to remove calls where handling was truly inadvertent.)