Actually not power creep. When the game was released, there were extremely weak 4 star cards like Silverfang and strong ones like Axe Raider. This is just an additional strong one...
Don't forget there is also that Assailant geezer with a potential of 2000 ATK AND that one spell card that reduces monsters levels by 2, essentially meaning you can summon Tyrant Dragon with 1 tribute or Dark Magician Girl straight up.
Everyone seems to think monsters are the cause of power creep when in actual fact it's mainly spells and traps.
You think Michizure is pretty good? Wait until Konami bless us with the OP Sakuretsu Armour.
Think about it: what's more of a power creep? This little guy with a measly 1700 ATK or Jerry Beans Man who been here for time...
First with Ultimate Rising it is from its usability better than Jerry because with 1500 Def (and mayby yellow shield as buff) you have the option to Defend if needed.
2. Sakuretse Armor is already available with Lvl 40 Yami Bakura.
They need to update and renew the R, UR and SR cards on the Ultimate Rising Box.
That said I'm a guy who thinks X-Head Cannon (and the whole XYZ Cannon series) should be in the game. Jerry Beans shouldn't be the strongest 1-off card when it is level 3 and not weak to 4-Star Ladybug.