It's a wise idea to get a lot of experience before transitioning to tech. That said, the 'Tech Intro' type of course can help you navigate towards your future development towards that goal.
If you do take a Tech Intro... pay specific attention to the gear configuration aspects. You can apply lots of these to your recreational diving, which will make the later transistion easier.
Also pay attention to the level of precision and consistency needed with the core skills; such as buoyancy, trim, propulsion and situational awareness. Understanding the goal-line that you will later need to achieve, will help you focus on developing those high quality personal skills as you gain experience in the future.