Its become a ego thing
Yahoo is insistent on changing something they know doesn't work. The new site is way more cluttered, has less organized data, and is inundated with ads and usless page space. They knew this when they changed the U.S. site and everyone went to the old Canada site. So it became a ******* match because of the arrogance of a company insisting on telling its users what the users want.
I used matketwatch's front page when they swapped the US site until i found the Canada site. Now no choice but to use Marketwatch all the time for news. Its almost like Yahoo is intentionally trying to devalue the site for some selling purpose. Only the portfolio format keeps me coming back. Once that goes along with the biz research site there's no more reasons to use Yahoo anymore.
Yahoo is intent on destroying the only good thing they have left just because they have made the decision too. Not for any logical reason, like something is better. They will tell themselves the Earth is flat until they've brainwashed themselves into thinking it. The death of a company