Yes it seem Ngilu has gone politically. Who wouldn't considering the kid gloves that Waiguru has been handle with.
And that is the unfortunate bit about Kenya. The politicization of corruption has its rewards. Ngilu, instead of focusing on clearing her name, can actually scream favoritism. Someone can count on their tribe to rally behind them regardless of the accusations or evidence against them.
I get the feeling that doing that in Tz won't get you political mileage. That people will want to avoid being associated with a disgraced politician.