Has increased Bitcoin popularity resulted in an increase in Wrench attacks? Does anybody know? If so, are well-known public Bitcoin holders adequately prepared for the Wrench?

Wrench attacks only happen to careless individuals, who don't realize how important it is to keep their Bitcoin holdings secret. All wrench attacks occur, because the perpetrators already know their potential victims own Bitcoin, so they easily carry out their actions by observing their potential victims. If you look for similar cases, they are sure to be premeditated or planned, and some of these cases have been discussed in this forum.
Therefore, I advise anyone not to easily share their Bitcoin holdings with anyone, even friends, let alone make it public. It is very dangerous; you will be monitored. I don't mean to scare you, and I don't wish it happen to anyone, but you should definitely keep your Bitcoin holdings a secret. There is no point in telling anyone about it; it will only make you vulnerable.
Regarding the OP question, I answer: The law of cause and effect clearly applies to the rise in Bitcoin popularity, but you must remember that this is due to individual negligence or error, not Bitcoin fault, or its popularity. The simple logic is, if you publicize your ownership of valuables stored somewhere, it will automatically provoke others to want to steal them (especially those with malicious intent). In other words, you don't need to publicize it; what is the point?
Regarding well-known public Bitcoin holders, I believe they have prepared for every eventuality. One well-known Bitcoin holder in my country often talks about the potential wrench attacks they might experience, and I believe they should discuss this, and take steps to prevent it from happening, to avoid such problems.
Personally, I don't see the point in sharing someone Bitcoin holdings, even for influencers. It will only make them anxious and put them at risk. It should be better to enjoy the peace of mind of owning Bitcoin, without anyone else knowing.