"Highly resistant" to scratches, drops, and dents is not the same as "impervious" to scratches, drops, and dents. No one is claiming that carbon fiber shafts are as easily dinged as wood shafts. What has been pointed out is that carbon fiber shafts are not immune to being damaged, and when that damage occurs, repairs are more complicated, when they're even possible, compared to repairing the same damage on a wood shaft.
Do you believe that if a busy pool room replaced their wooden house cues with carbon fiber cues, the shafts of those new cues would largely remain pristine after a few months of use by bangers?
Experienced players don't frequently ding their wood shafts. Nor are high-quality wood shafts prone to warpage when stored as recommended (e.g., not left in a car year-round). A lot of the so-called advantages of using a CF shaft are really about solutions in search of problems. I'm old enough that I've learned to avoid paying for such solutions. Younger me was more prone to marketing hype.
Like most everything else, it's a tradeoff. It's okay to want a shaft that's more resistant to minor damage, even if that comes at the expense of minor damage being much more difficult to repair when it does happen. It's also okay to prefer a shaft that is easily repaired, even if that repairability comes at the expense of requiring minor repairs/maintenance more frequently. It's about preferences, not about one approach being objectively better than the other.
The most significant "improvement" that carbon fiber shafts bring to the table (so to speak) is their higher profitability. That's great for manufacturers and retailers (assuming enough of the extra profit margin is passed on to said retailers), but less great for players. While the higher margins allow for better sponsored tournament payouts and pro player sponsorships, that extra money comes at the expense of making pool even less financially accessible to new younger players. Too many new (and even experienced) players are susceptible to marketing and social media hype, and they believe that they need a low-deflection CF shaft if they have any hope of playing well. The reality is that one can become a good player using house cues. It's the archer, not the arrow.
