That's the point, they are attaching skills to weapons, and further devaluing melee classes. It's why you can roll dwarven mage, sack intelligence stack strength, and grab the headband of intellect, and now you have a mage, a non-melee class that can pick up a greatsword and cleave just from equipping the weapon.
It's in the same vein as allowing any class to cast spells from scrolls. It devalues the concept of individual classes that DnD is built around.
It's definitely not in the same vein as scrolls. Universal scroll usage has taken a class-exclusive feature and given it to all classes. Whereas weapon's Cleave, Smash, and Charge are not class exclusive abilities (except for the single instance of Horde Breaker). They're also extremely limited usage whereas scrolls usage is unlimited.
Plus, these weapon abilities are really only useful to martial characters. Are you really going to run up in melee with your wizard to use it's Topple ability? I don't think I've ever done that. If anything, these weapon abilities enhance melee classes because these are the only classes that will use them.
