Yes; I've had it with Dyneema as well. It seems more a curse than a blessing. Strong and light = yes. Vulnerable = even more so. I know why the ORC requires only Dyneema for race-boat lifelines: it's so you can cut it away to retrieve a MOB. They also forbid lifeline gates for the avoiding of the problem in the first place (if not due to peeing over the side, the likeliest cause of MOB at sea is from failure of lifeline attachments). But ANY exposed blade is a threat to Dyneema, for the same reason. Imagine rigging a whole boat with it and having to toss (for perfectly reasonable reasons) a sharpish object across the boat to someone and accidentally gashing a mainmast shroud-- heads' up, boys; she's comin' down! As anchor rode it's got to be the very worst possible choice (aside from maybe cheap polypropylene double-braid from HoDePo, which a friend has for her jib halyard, now nearly dust after four seasons).No way in this world I'd do without chain anchoring in coral, as in the keys and Bahamas, or oyster shell as on the gulf coast.. You dyneema, or nylon rode would be junk after just a few encounters. I'll keep the chain ..
Sometimes the simplest boneheaded solution is the best one for too many reasons to count. Someone (like Chicester) reminded us that the higher the level of tech on your boat, the higher the likelihood of failures you can't mend with what you have on board at the moment. I'm about the last one to be dazzled by what's new, hot and cool. I'll stick to what I already know is adequate, eliminate risk, and save money.
FYI the current Golden Globe RTW race is essentially a testimony to pre-1980s tech. My boat is (in a smaller scale) a testimony to 1970s tech; and I like it that way.