Notably Brad Smith was their chief counsel back then and he still is now - he's gotten a promotion to President in fact.
I mean they won right?
The competitive advantage the bundling has given them is enormous.
And while un-bundling it now will stop "additional benefits" it won't in any form remove the benefits they already got.
E.g. companies which are on a bundled plan and use both are now used to it and their cross integrations (which won't go away) so as long as it's price wise competitive with other solutions they likely will keep it and now pay for both.
As long as anit-monpoly low doesn't 1) penalizes based on the long term benefits gained 2) shifts more to anti-massiv-power-abuse laws in their phrasing/formulation/public discourse we will just see stuff like that happening again and again. We sadly life in a world where huge companies braking the law is the norm as long as it's expected to yield them noticeable more money then the fall out through penalties and publicity. And that isn't just limited to vague laws like monopoly power abuse, e.g. Ubers operation is quite not so fully legal in a lot of countries.
Not saying that market power abuse is in any form right.
Actually I would argue it's wrong no matter how technically decent the product is.
Sony didn't help as they are notoriously buying exclusivity with every single game they could (which has worked in their favor)
All of that stuff back then had basically no consequences, which is probably why MS continues to increase their anti-competitive behavior. They will continue to do so until there are consequences, obviously.
Asked another way, why is Apple allowed to bundle Music with the iPhone, but Microsoft is not allowed to bundle Teams with Office?
Bundling is basically their modus operandi.