No they didn't, they de-emphasized the turrets as the central element of their kit by buffing the rest and nerfing the turrets and gave them a more general role than just "turret based zoner", Torbjorns weapon was made more functional, overload gives him enhanced fighting for a time, molten core is area denial/anti armor the Turret is there to
support his general gameplay not
be it, Symmetra has a defensive utility based playstyle, she gives more mobility with her teleporter, blocks ults/sightlines with her ult, her turrets slow and can be used to block flanks once again the turrets are there to support the rest of her kit not be her kit.