I don’t know, last time I played the game seriously was on first season of Role Queue 
(season 18?)
Anyway, it’s sturdy compared with the original turrets, that had literally 1 HP. I lost count of how many times I warded the Volskaya first choke just for a flanker D.va or Reaper sit by the high ground in point A and shoot them off with tickle damage.
Back at 2.0 days I remember calling for a turret HP buff to 15~25 HP just to avoid this very specific kind of situation. Her turrets being deleted by incidental damage is fine, but that specific one was a bit ridiculous.