Liara's characterization ultimately was a bit of a crutch for the writers in the trilogy. She was a constant - you couldn't unlock Ilos without her while Wrex, Ashley, and Kaidan all could die and Garrus could go unrequried in ME1, and in ME2, every companion was a potential casualty of the suicide mission. Because of that, they pushed her relationship with Shepard to the forefront, so that she could effectively 'stand in' for characters who might be dead. The problem was that the minute someone played a game where those characters were still alive, still capable of standing for themselves, her prominence becomes unearned, because she's always there when a character who the player is better connected to could have been instead.
I mean one of the stand out examples of this for me is the second dream - there's no reason that should have been a conversation had with Liara, since Shepard will discuss the person left on Virmire if they didn't have a romance die on the Suicide Mission. That should have been a conversation had with the Virmire Survivor when they rejoin the crew, after they hold a gun on the survivor, only had with Liara if the VS doesn't survive or rejoin the crew. But no, it's have this conversation with Liara only or not.
Because Liara was the character that the writers could go to, because she never has a point where she is able to be killed, they relied on that, gave her these emotionally intimate beats with Shepard. But the minute you have a player who isn't invested in her, who doesn't feel the way that the writers intend them to towards her, she's acting an intruder, overstepping her bounds because the things she's saying and doing are not justified for that player. Her overall presence in ME3 is basically holding the spotlight, so that other characters, characters who might not be there in every game, don't get as much of a chance to spend time in it. And while she's not the only offender of this, she is the worst offender of it, because she gets the most prominence out of it.
So yeah, they need to be aware of this fact when it comes to Andromeda and any successive games. If Andromeda is the first part in an ongoing story of a single protagonist, they absolutely can't have a case like in the Shepard trilogy where multiple major characters, ESPECIALLY romances, are potentially killed off in the first or second games of the trilogy. Otherwise, we end up with this all over again. Sure, I don't expect them to have someone in a corner, watching a stopwatch and clocking the time a given character has in the spotlight, but they do need to divide content up fairly equally in terms of the time the character is given the spotlight - how often is this character required to go on missions, how many conversations are they being required to have with the PC, are any of their conversations optional, how often are they in opposition to the PC, how plot intensive is their involvement, and are these all about equal amongst one another. Liara's content is not equal amongst the other characters by the time we get to ME3 (Three missions she's required on, four if you include From Ashes, and on that on and Mars, she could just as easily serve as a voice on the comm or a non-squadmate like the barrier tech on the Suicide Mission, she has multiple emotionally intimate beats with Shepard in the post-dream conversations, she gets a nude romance scene while all others go no further than their underwear and not even that for Garrus and Tali...), and we can see this as early as ME2 (her being involved in recovering Shepard's body and being loyal still to Shepard, in opposition to Ashley/Kaidan's entirely justified distrust that's plainly framed as somehow being them being unreasonable on Horizon, and her getting a spotlight DLC).
Liara's a crutch for the writers, and it makes it hard for the other characters to have a proper opportunity to stand out because she gets this focus. This is an area that the next games need to be aware of and do what they can to avoid.