In any case, the issue isn't political activism, it's the tastelessness of the threat. It also doesn't help that it exposes how this particular employee apparently felt no compunction in undermining what others in his business were working for - it sure looks like he wasn't actually handling in the best interests of his employer, and I can't imagine he didn't know it.
I'm not saying we should applaud this development...
In any case, I don't see no evidence that snapchat it being particularly biased based on one story they're pushing. It's pretty much impossible to make that conclusion based on one story, given that they push so many. It looks more like sheer incompetence to me than anything else.
If Snapchat's board are all in agreement that that's where they want the money to go, fine --- but they should also realize that Snapchat is a social network, and the appearance of fairness is probably a reasonable thing to aim at. If the DNC or RNC launched a social network, they would find themselves somewhat hampered in their ability to grow, and with good reason.
Alternatively, do you think "everything is normal, continue doing consumer culture stuff" somehow isn't a political message?
Most people can decide whether to "continue doing consumer culture stuff" or to freak out about politics without the help of Snap or any other corporation. There's an odd sort of corporate worship/megalomania that makes people think they're morally obligated to "weigh in" on an issue. They're not, and their constituent individuals are more than capable of pursuing their own political activism and/or creating more appropriate vehicles for voluntary cooperation toward those ends.