First of all, as a prolife Christian I am glad to hear that in "post Christian" Europe (specifically Spain) there still exists a group that is campaigning for the rights of the unborn. Ironically, the percentage of prolifers is probably much higher in Kenya than it is in Spain.
But "disinformation"? Maybe. I think the word propaganda is a bit closer to the truth. Something does not become disinformation because you disagree with it, or because it expresses an opinion you don't share.
Disinformation is certainly the correct term for what CitizenGo are attempting to achieve through this Twitter campaign. The proposed law in question, the Reproductive Healthcare Bill [1], does not change existing Kenyan law regarding termination of pregnancies.
But "disinformation"? Maybe. I think the word propaganda is a bit closer to the truth. Something does not become disinformation because you disagree with it, or because it expresses an opinion you don't share.