The quantum topic is almost always misinformation about something that is portrayed as here and now, though is still years away (if ever possible). I suppose the bright side of this proposal is that it insinuates that the threat is still at least 5 years away.
My question has never changed especially when It comes to quantum attack related topics. Why is Bitcoin always the point of discussion when there are literally hundreds or even thousands of things that can possibly be attacked?. Okay, I understand that they are trying to address future possible problems before hand, but are quantum computers dedicated to be a threat to just vulnerable wallets or Bitcoin itself?.
I've watched a few videos, especially on special quantum computers from very big companies, but most things that are being said are always based on theory. I'm not sure of howfar we are from any future possible attack, but I really look forward to seeing how this proposal is treated.
The answer to your question is quite simple. Quantum computing is an effective way to spread fear, uncertainty and doubt about Bitcoin, since quantum computing is a
theoretical future threat that can be portrayed as a current one. It scares new investors from entering the market, and maybe even scares people into thinking the sky is about to fall, causing them to sell their btc and doubt its future. It is becoming more and more effective with time as technology evolves at a rate that people can't understand, especially now that we are in an era where evolving AI exists as well.
Why do they not think about consequences on less evolved systems? I think that because to most, Bitcoin is not a necessity, and to those that believe the quantum threat, it's an excuse to doubt Bitcoin's future. For what they perceive as necessities (like banking or online accounts), there is no choice but to trust and not to fear any consequences (until of course, it's too late and there is a need to look at alternatives).
I think the reality of the quantum threat is that it will effect traditional systems before it effects Bitcoin, and may even be a catalyst for even further adoption if something ever were to happen.