If it not from Dev when i do not undestend who need it...
Were is differensce if MC call somobody mother or [any name] if it not contains differnt dialoges?
Personally I don't care whether there's incest content or not in a game. However, some games are written in such a way that without an incest patch they are practically unplayable. (A good example of this is
Guy in Charge).
This game isn't bad at all without the familial references. As a bit of history for you, originally this game was called
The Family Secret (as you can see on the OP). The dev redid the game, which became this one (thus the "Reloaded" in the name). At least as of v0.4.1.4, Patreon got up his ass about incest (which is a no-no there), so he edited the script so it's not there anymore.
However, for some people incest is a kink that they really enjoy. There are actually many adult games that
officially don't include incest but
in reality are intended to be incest stories: the aforementioned
Guy in Charge,
Sunshine Love,
Shut Up and Dance,
Away from Home, and so on. There are, of course, also several games that don't even remotely try to pretend that they don't include incest:
Bad Bobby Saga,
Light of My Life,
Staying with Aunt Kate,
Sins of the Father,
TP: The Class Next Door, etc.
Beyond that, though, for those who played the original game, it feels a bit strange to not have Mary be his mother or Molly be his sister. Those characters were previously already defined, so not having the same relationships is a bit weird. But you are correct: the script now — other than some occasional errors where family references were "missed" (i.e.,
not omitted) — reads just fine without an incest patch.