That's not by any means the only metric for assessing a game's soundtrack.

There are other crucial factors; how well the music fits and enhances the gameplay experience for instance. A traditional bombastic orchestral score would have been totally out of place in Botw's mostly solitary journey through a ruined kingdom now overgrown into a wilderness. Such dramatic themes do play a part during narrative events such as the Guardian Beasts, but out in the field, the ambient minimalism perfectly accentuates the game's sense of place and the  contemplative, almost zen-like process of exploration in a world that jutxaposes serenity and danger.

I understand the side that doesn't like the soundtrack. It takes a minimalist approach and the good parts of the ost can be far and few inbetween, but considering the size and scope of the game, I think it definitely fits with the game. It really helps portray the feeling of exploring a massive world and it gives a different vibe compared previous titles. Older ones get you pumped to set out and adventure forth, while BotW feels like it encourages you to take things slow at your own leisure and just... take in the world. I personally dig it.

I think the soundtrack is very fitting because it is minimalistic. This Hyrule is destroyed by Ganon, humanity has been pushed back to live in a handful of stables scattered thoughout the land, only one somehow big town exists anymore. Only a few merchants travel the country. Everywhere throughout Hyrule withering ruins can be seen, left to be covered in grass. Destroyed villages can be found here and there with typically a Wizzrobe soaring above it like it's protecting the dead souls (or like it's the hazardeur that celebrates his accomplishment). Monsters reign Hyrule now.

And here you have Link who lost his memory and regains it when he sees significant locations that provoke certain feelings he had back in the days when he had been here. Now I like to think that Link remembers much more than those 12 memory clips. Whenever he runs around, climbs a mountain, watches some animals, swims through a river, crosses a bridge, etc, you can hear some mild piano tunes. I like to think that this piano symbols Links impressions he gains by being in Hyrule, like he is wondering if he hadn't been here already once, right? Doesn't this look familiar? Note that the music sometimes play some distorted, artificial, almost mechanical sounds. These also show up when one of the 12 scenes start. So this is my strong hint that Link remembers something.

In some senses it may be, is actually shocking to me the amount of people here that thinks its weak or even horrible, a good soundtrack is not only about catchy songs, at least not for me, maybe BoTW soundtrack is not the most exciting to be hear outside of the game (it does have a bunch of very nice tunes though), but in the context of the gamer is masterfully used.

Yup, that's one of my few complaints about the game. I mean, there IS great music in there, but not enough. I was disappointed with the music in Skyward Sword as well.

Does it have to be catchy to be good, though? I can argue music like Rito Village, Stable, Tarry Town, and Hyrule Castle (outside and inside the castle) are great listening to. Not necessarily catchy, but still nice to listen to on their own. The musical variety used for the soundtrack is really cool. From various string instruments like kokyu, traditional violin, and acoustic guitar to other instruments such as piano, percussion, synthesis, accordian, brass, etc. This creates various types of music such as jazz, orchestra, folk, Indian, traditional Japanese, the type of music for the Shines (I forgot what its called at the moment), etc.

This video (if it hasn't been shown already) shows a perspective of the music in BoTW.

https://www.youtube.com/watch?v=3FWVKu1gnWs&feature=youtu.be

meh..I played over 300 hr if it had constant music in the overworld i would have probably stopped due to being annoyed.