Hi there, I think for even attacking players this is a great shot which can be very effective and worth working on. I ise this shot quite a bit especially on the return of serves to force opponents out of position and hopefully get a weaker ball back as you mentioned.
We do have a video on how to make your long push more effective, not sure if you have seen that one? https://tabletennisdailyacademy.com/videos/how-to-make-your-long-push-more-effective/
This will help if you haven’t seen it, it’s important to get the bat angle right and have a good early timing if you want an aggressive push. Also really try to focus on hitting the frong edge of the rubber to get the maximum brush and acceleration into the push. Let us know if that helps!