Covering one’s hair after marriage is required by Halacha. Dressing not so “out there”, including these types of shaitels are gedarim. Gedarim are something that is the way people are brought up with. You can’t compare the two. If you were brought up to only wear a tichel -fine, but don’t go tell everyone else they have to also. The same thing with these long human-hair shaitels. If you feel that isn’t the way a frum person should dress, so fine -don’t. But don’t put your gedarim on others!
If you have a good friend and you want to tell her what you believe in, then you can. But you can’t tell the public at large –
“If you wear a long human-hair shaitel, then it’s just like your hair isn’t covered”!