GNA doesn’t have enough troops to do this it would be overstretch and could be strategic mistake maybe if the wild rumoura about 11K syrians fighters turn ourt to be true then I would agree with the tunisian journalist
you don't need troops to destroy an airbase, or make it unusable, a few runway destroying bombs
https://en.wikipedia.org/wiki/Anti-runway_penetration_bomb
https://en.wikipedia.org/wiki/Matra_Durandal
would have the same effect, or if thats not possible, a ballistic missile strike or a salvo of cruise missile strikes would do the same..