We know that Halsin and the general personality rewrites of companions were because of EA and its quite possible that this also affected the Nightsong rewrites.
Yes. SOME of the rewrites were directly related to EA feedback. Halsin, Wyll and the general personality of other companions were a result of EA feedback requesting for changes.
The, quite massive, change to turn tadpoles into a consequence free superpower late in development was I think also because of EA statistics of people not using them often.
Not sure what Informationen you have about the Daisy rewrites.
As far as I'm aware, there was no major feedback in regards to requests to change the nature of Daisy or tadpoles. This was a Larian decision.
It has literally been stated by developers, that Karlach having an Infernal Engine for a heart was a later rewrite because "They thought it was cool"
Meaning that not all rewrites are due to EA feedback.
I also think the general hornyness of companions is also because of EA as Larian wanted to give EA players already some "action" in that regard.
Which means it was a Larian decision. Not players asking for more fanservice.
Heck, Halsin being a complete sex pest was entirely Larian too. Yes, people asked for him to be a companion. But it was Larian who decided to rewrite him in such a crude way (Which was actually a disappointment to many who wanted him to be a companion)
Even more so we have a situation where Larian's recent "One Year Statistics" showed that Shadowheart, the least horny Act 1 companion, was the most popular choice for the camp party. Which, outside of any data to suggest otherwise, is likely to have been true in EA. Meaning that Larian's decision to add in more horny wasn't particularly targetted towards what players wanted.
