Are some beers 'too hoppy'? Hoppy beers appear to be fad at the moment. 

It seems that some brewers are aiming to produce beer with the sole aim to be as hoppy as possible, without consideration to other flavors or characteristics. 

Is it fair to say that some beers are simply 'too hoppy' by some objective measure? I would say the New Zealand's Boundry Road Mumbo Jumbo IPA fits this category.
International bittering units (IBU) measure the bitterness of different beer styles. IPAs have a wide range, and they're typically higher on the scale. If you can find the IBU of a beer you want to try (on Untappd, on the bottle, or some bars make this information available), you can compare it to other beers that you like to determine if it might be too bitter for your tastes.

I've tasted some beers that are way off the IBU scale that I linked to, but it's still subjective to say that these beers are "too hoppy." It's a matter of taste that I'd compare to saying that some foods are "too spicy." Some people might just like to try these novelty beers once, and other people might really develop a taste for them.