Champion rebalance issues?

Will Riot EVER balance or properly? I mean here's where they go wrong with these champs.

Doesn't need to build much AP at all to basically 1-shot kill you, invulnerability every 4 seconds with full CDR then 1-shots once he comes out of it, ult acts like a homing missile if you're within the radius at all.

Invisibility seems a bit odd as she's invisible until she actually attacks even though we're supposed to see her within a certain distance first, can build tank while still dealing lots of damage.

Lots of damage, utility (dash, shield, ult's power boost and stun), no resource to rely on like mana, energy, or HP, can build semi-tank, all abilities have absurdly low cooldown.

pretty much only needs a and to 1-shot you, doesn't rely on mana, energy or HP to use his abilities.

Much like Rengar, but can basically blow you up with just 1 Q.

Can just blow your turrets to bits with just one W once the turret reaches a certain amount of HP left.

Is it just me or does it seem like Rito doesn't give a single F about balancing champs properly?