I would definitely say that implementing that was 100% when I saw that google was done making good decisions and on the path towards making their core product worse.
They're usually caused by hubris, and learning humility, to not antagonize your customers, and that you can make mistakes - like Microsoft seems to have - usually fixes things.
Its fairly obvious that google is not really afraid of any large competitor in their space.
More than anything they are just buying up the next google (like msft did) to ensure that nobody can come up from the depths.
Desperate imitation of Apple caused additional problems.
Thanks buddy.
At least that's what I heard somewhere back then when they broke the + operator.
They just got rid of one of the two available operators; quotes were there 10+ years ago.