I don't think so. Stewart's greatness derives from her ability to show up in big games and her really unique skill set as a 6-4 dominant inside out player. KLS doesn't have the length or defensive prowess that Stewart does, nor the developed inside game that Stewart had. In Stewart's senior year, she was almost like a Griner 2.0 defensively and a Parker 2.0 offensively but with more range. She was ridiculous. KLS will never have that skill set.
KLS is great and will probably go down as one of the best to put on a Huskie jersey, but in greatness, she's more like a better version of KML than Stewart IMO.
Both players are "hampered" by being surrounded by great players relative to Moore and DT. I'm also not so sure that Collier doesn't have an equivalent claim to KLS in terms of greatness.
KLS isn't leading the troops ala DT or Maya, but she's one of a few great players on her team that play well together. She doesn't emerge as the obvious crown centerpiece of her team like Moore/Stewart did while at Connecticut. For that, I don't think she'll be on par with Moore/Stewart/DT, but both her and Collier could be in a class of their own just below those 3 when they graduate from Storrs. If they keep their numbers up and keep winning.