That's not a light touch, that's pure bias, it was posted by Noseall, so allowed to stay, probably JohnD the mod looking the other way..
The credibility of this Forum is becoming worse by the day.
Absolutely, Gypsum plaster should NOT be used. 2 coat sand and cement render should be used, with a waterproofer in the scratch coat. Lime render is another option.
Also, make sure all sources of damp are corrected too.
The other day, Mod's put out a comment saying ithey would not tolerate offensive, abusive post on here. DOUBLE STANDARDS again by the "biased Mod's" on here!!
MOD: T**t has been removed from the post, the rest is reasonably accurate.