I think some of the Stepan maneuvering was the Rangers seeing if they could adjust the course of the team by changing it's make-up. The wheels coming off in 2018 just solidified that they needed a more drastic change. Keep in mind that in addition to moving Stepan there were rumblings about Thornton coming to NY as a UFA. That probably changes things quite a bit had he not elected to stay in San Jose.
I also think the Rangers had some legitimate concerns about Stepan's longevity and wanted to get out from under his contract. There was likely a bit of marketing laid over the top of that for the casual fan base.
Despite where the true rebuild may or may not have started, we're at best coming up on the 2 year mark. That's not a lot of time under normal circumstances, but Gorton has done an excellent job of extracting value out of his trade assets. I think now is the time they'll turn up the dial a little bit and try to focus on landing those premium pieces. Chytil, Howden, Lemieux, etc, all look like a solid supporting core up front. Kakko, Zibanejad, and Kravtsov could be a great foundation for the top-six. There are a lot of quality pieces on the way to build the blue line.
That being said, I don't think there's any point in adding expensive older players until you get a better picture of how this plan is going to take shape. It could be 3 years before this team shows enough progression to start making a run at the playoffs. It could be 5. It could be next year if our top prospects make huge impacts and we see monstrous progression from some of the other guys. Until that happens though, I think staying the course is the best way to go.
Stepan was entering his NMC years, if Gorts don’t make that move we are still stuck with him. It was a rebuild move before Gorts felt he had the mandate to go full throttle with the rebuild.