A humanoid robot would demand continuous maintenance, especially after planned obsolescence kicks in. No robot has ever worked under dirt conditions.
I guess a warehouse can be designed in a way that works well for a non-humanoid robot, but an environment designed for people in the first place (like a home) fundamentally needs to be person-shaped.
Also like, loading and unloading the dishwasher is not that hard or time consuming.
edit: but if the robot could in addition also do dishes in the sink and not need a dishwasher at all, that'd also save up space in the kitchen for something else
If your definition is "it could, at some point, enable me to stop paying humans for their labor and pass along more of the value to major shareholders like myself", then yes, that's a reason to want humanoid robots.
If your definition of "good" is a little more broadly scoped than the above - which it should be if you don't have an MBA and a substance abuse problem - then you're correct.
The potential difference here is that it might eliminate all human labor which would likely force us into some new kind of economy. Hopefully something better than one where humans waste their lives on manual labor.