Even if he wins the case, Google loses just limited amount of money. It's just a legal case instead of continuing PR + HR nightmare inside Google.
If a case goes through and has a concrete result (as opposed to a settlement + gag order) it has a high potential of being a landmark case of one sort or another. It's difficult to say what that will be, though, because the details matter a lot and it will certainly be more complicated than any simple sentence will accurately capture. The findings and final judicial opinion matter too, not just the binary outcome of the case. I mark the "some reason related to this matter" with [1] above because the case itself will also be deciding what that reason ultimately was; none of us currently are capable of guessing what that is and I guarantee you your knee jerk will prove an inaccurate indication of the final judgment's logic.
(And let me emphasize explicitly I've written this post generic to the outcome of the case. Either major outcome could be a landmark case depending on the reasoning given by the court.)
And to how many leftist podcasts was he invited?
"The news" is far from an editing unbiased reasonable discussion. They completely misrepresented his views already, there is absolutely zero reason to believe they would give him a fair chance to represent himself.
The person you were replying to was referring to the "continuing PR + HR nightmare inside Google." The public reaction was a problem but the damage to morale and the culture of the company was, one assumes, considered a much bigger threat by management.