The statue was only targeted after it was hit by a car and was later rebuilt identically.
Censorship of pro-life organisations is on the rise across Europe.
The couple was arrested in July 2013 under Pakistan’s blasphemy laws and the session court sentenced them to death by hanging.
Forstater was fired from her job when she tweeted that "men can't change into women".
The appeal verdict will be read in April.
Some of them have been arrested in December 2014 at a Christmas celebration.
"The right to freedom of expression is not absolute".