I understand what you're saying, and I agree to an extent, particularly regarding V1 LEM, which has characteristics of both a SA and a striker-fired action. However, in my opinion, V2, V4, V4.1 and V1.5 I argue ARE more like a DAO than a striker-fired action.
After some intensive discussion here, on HK Pro with TooSixy, and with HK CS and HK Armorers, the substitution of the medium-weight Trigger Rebound/Return Spring significantly transformed the pull resistance (particularly up to and including the break point) so that it is more akin to DAO (and what I've termed "V1.5"); trust me, I'm pretty familiar with DAO on a semi-auto....
I don't personally agree with the 4.1, which is LEM with a shorter take-up, which, while it may improve "shootability," I feel is counter to the intent and purpose of LEM. So you and I are probably on the same sheet of music there.
Best, Jon