PTE Video Optimiser was designed as a standalone app, useful as a complement/addition to PTE AV Studio, and useful for a wide audience of users.
Some features from PTE Video Optimiser already have been ported to PTE AV Studio 12. For example, video export in AV1 (WEBM) format and support for vertical video export.
Video stabilization and noise reduction cannot be performed with highest quality in real time (they require significant CPU and GPU computations). Stabilization works in 2 passes for the best quality. These features can only be implemented for video export.
An important feature of PTE AV Studio is that all our effects (except Motion Blur) work in real time and are available in a fullscreen preview, in the EXE shows, and in the video export.
Stabilization is the most complex feature due to its 2 passes, which must be precisely timed. Integrating it into PTE AV Studio will be even more hard than in PTE Video Optimiser.
Yes, I'd like to see stabilization/noise reduction functions in PTE AV Studio, but right now we're not ready to implement them. Sorry.