I don’t know why it’s “obligatory” or even merits a repost. “Alternative” doesn’t necessarily mean “facsimile”.
al·ter·na·tive
/ôlˈtərnədiv/
adjective
(of one or more things) available as another possibility.
fac·sim·i·le
/fakˈsiməlē/
noun
an exact copy, especially of written or printed material.
From what I can tell, nobody is trying to replicate a LPVO. At least in this and other discussions. What, instead, I see is people that have evaluated the LPVO options (either through trial or via reading online, or both) and determined that it’s not for them. Possibly even not for them on a particular rifle while still owning others that may, in fact, have an LPVO on them.