I think it's a bit boring, doesn't really have the gopher's personality, but is clean and probably serves its purpose.
I'm sure they feel that Go has established itself enough that they can get away from cutesy gimmicks.
On the logo, ultimately
Gopher hasn't stopped being the mascot, though. The old logo was very similar to the new logo, but a pencil sketch version instead of the more formal version it is now.
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