The question is what people think that developing your technique differently means when you have a coach. In a sense, if your coach is the one telling you to wait, then do what your coach says because he is taking responsibility for your development. Ask him some questions like what playing level and experience does he think it is good to switch and what do you have to do to get there etc.
If it is people who are not your coach, then you have to figure out what is best and who you trust. I find generally in Europe, some people are very old school and conservative about equipment and keep tying it to playing level. In reality you can play bad with any equipment and play well with any equipment, the real challenge is whether it suits your style (therefore it doesn't matter) and whether you have limited feeling, in which case a blade with higher vibration might help you learn better. Even some pros who like spin feeling still prefer innerforce to outerforce. So one compromise might be to get an innerforce blade. But honestly. IMHO and experience, if you have coaching and you have decent form, the rest is always coaching on how to generate spin and how to develop touch, that comes down to feeling and physicality, not equipment. Equipment can make it harder for sure, but equipment is always making some things harder and other things easier, it is up to you to practice developing the feeling for whatever it makes harder. If you get sticky rubber, it makes holding the ball easier, but can make getting speed harder. The opposite if you get non-sticky rubber. Softer rubber makes it easier to get spin but harder to loop the ball really hard and get high spin. Harder rubber the opposite. Softer topsheet makes blocking easier, but makes it harder to get arc. Harder topsheet makes it easier to get arc/spin, but harder to block.
Carbon makes the ball fly off faster so you might not have the feeling to generate spin with it. But that is the job of a good coach, to show you how to spin with it so that you can play with it. And if you cannot spin with it, you will not be alone and it won't be the blade's fault, there are lots of people using Korbel who have no idea how to spin.
Yes if you want to share video, feel free to share if you are confident. People can make a lot of tough comments. IF you want a safer place, share on the Video Safe Footage Thread.