Well, I'll chime in to say its weird to me too. Thats just a fact: I read it, and I go, "urrgh.. thats awful!". Thats my first emotional reaction.
I dont know why exactly. First off, obviously, I guess, is that I wouldnt want to, myself - like, the desire is alien to me, and things that are alien to you tend to seem "weird". I mean - is
my reaction - isnt love all about enjoying the other's nearness? Waking up and seeing her hair.. the scent of her skin as you open your eyes, lying next to her.. looking into each other's eyes when you wake up, her sleepy "good morning" an invitation to hold each other a bit before getting up and facing bathroom tiles and mirror reflections. There's few things as beautiful as your lover falling asleep in your arms, as you caress her hair or just hold her, or as drifting to sleep yourself in your lover's arms..
Thats precious to me, I guess, so I suppose I feel a little bit threatened when I read something like this? I mean, still purely talking instant emotional reaction - lemme do the full nano-second by nano-second analysis here

- I think I'd be quite upset if my loved one left the bed after making love, or never joined me at all in the evening, or would say after some cuddling - now go to your own bed. I would feel so alone, kinda - I mean, here's the person you love, and that you love holding - and she doesnt want you to be near! Or something. Thats the anxious counterpart to the romantic above.
So I guess there's some snap-second of self-defence going on there, like: oh god if this is becoming ever more common, then.. I might come across it too.
On another level, purely instinctively speaking, I react negatively to it in an abstract way, and its a kind of silly exaggeration that I sometimes do, taking any random incidental thing and associating / equating it with some grand universal pattern of "where society is heading", and passing judgement on it like that. Even though the incidental example may have very good concrete reasons and nothing to do with any broader thing in society whatsoever. Its annoying, I know.
But for the record, the instinctive association I make when reading little "lifestyle" items like this is with the tendency of people to live ever more separately, ever more individualistically, up to where interdependence is becoming some kind of bad word. Well, I mean, been happening for decades of course - in older times, like was said already, grandparents, parents, children and in-laws might still live together in the same house. And I dont think Id want that myself. But its gone now, instead we got the 'nuclear family', and families become ever smaller too. And theres this dystopian (to me) vision where we all end up in our individual pod, only connecting with each other at moments of choice and in ways of choice, on a purely rational and organised basis.
Yeah, like I said, its a dystopia (anti-utopia), a kind of abstract, apocalyptic (to me) vision. And you know, lots of little things that by themselves seem wholly innocuous, like for example people building ever bigger houses that take up their entire yard and that in return they spend ever more time inside of, kids not playing in the street - cornershops being replaced by online shopping, bla bla bla etc etc - well, its like, I dont like the general direction, so I tend to have a strong immediate negative reaction to any little "lifestyle trend" thats pointed out that fits in the pattern, or something.
So, feeling the same response as Bella had, this is, for me, the backstory of my response anyhow, FWIW.