April's Fools are all about poking fun. There's always a sap as the butt of the joke who are the people who fall for them. People shouldn't be so serious that they get hurt feelings when someone makes a very mild joke at their expense. (Some 'April's Fools' are cruel, but this wasn't)
This was done on an official account used for marketing. EA or a portion of it was, if only mildly, producing marketing hostile to a partner. It's also not necessary to pick on a third party, or to be more graceless about it.
One could argue that if someone can't, they shouldn't be doing it.
The base problem is that every year professionals and corporations that should know better continue to think the first day in April is a day where they can be unprofessional without consequence, worse when they use a platform as truncated as Twitter.
Then when they step on a landmine on a mass-media scale, it's supposed to make everything better.
This was generating media attention, so it's not just an internal matter anymore.
There are daily reminders about being careful with social media in particular, so this really does fall to the point that professionals should know better, and not use the public face of an organization for their personal flubs.
If the studio FrostbiteEngine is linked to is lucky, this might be treated as mostly an internal learning moment about the value of PR accounts, but the person in charge of it is likely going to get some heat if they are in a marketing position. If there is no marketing person acting as gatekeeper, there's probably going to be one, as there should.
What exactly was wrong with Dice's tweet that Nintendo should take offence at and hike up royalty charges for EA? That Dice sarcastically noted what everyone knows, including Nintendo, that Wii U isn't the most powerful console this gen? Is EA going to be charged an extra 50 million quid for it's sports games on N. HW because of this? If so, that makes Nintendo remarkably petty.
There are plenty of ways a lack of respect can cause problems at a personal level, and these multibillion dollar corporations are full of them.
A few tweaked contract terms or a few extra rounds through certification might be minor blips at the scale of EA or Nintendo, but at this scale it's possibly worth more than the position and salary of a few wayward employees.
Maybe the COO got an angry phone call from a Nintendo manager or exec, or he got a call from an EA exec.
Maybe EA's on thin ice with some of its obligations from its earlier "unprecedented" partnership with Nintendo, and the lawyers don't need public evidence of bad faith for some internal contracts.
Maybe since he's been around the industry, he apologized for the sake of people he knows or works with--using his own account.
What's the big deal about the responding tweet saying some stupid tweets were stupid? Why is calling out a dumb tweet such a big insult, it's not like it's an individual's account--or does that indicate that the PR face of a product makes things more significant than they would otherwise?
Calling them out on it internally, ok. Doing it publicly makes him a scumbag of a boss.
He said the tweets from FrostbiteEngine were unprofessional and stupid. He didn't say the studio or any particular team was stupid, or are you making my point that trying to address a PR account unavoidably puts everyone on the line?