It'd be great if they made a blanket statement about the issues reported and not try and lie about not hearing about them. If they are patching it, it'd be great. It's ridiculous people have to be careful about what they do in this game or face getting stuck midair, having their link portals vanish or switch between characters, records get screwed up, or all of the random glitches that have happened.
I think it would be smart on their part to just release a statement on how to fix it rather than deflecting it like it doesn't exist. If they made an official statement that said they aren't patching it because it is fixable, and then saying how to fix it, people around the world would stop panicking online (which is fine because I panicked when it happened to me).
should I be worried or not? Because I have already invested so much into the game XD
No, don't be worried. If you don't fix the glitch, you'll never get one of the better keyblades in the game and you will never be able to 100% the game, but there are 2 ways to fix that seem to be working for everyone. I'm too lazy to retype it again, so please refer to the last page, I posted it somewhere there helping someone else