Well, no, Joi actually had one of the most thought provoking parts in 2049 IMO and I think de Armas played the part well. However I will concede that Joi as an individual wasn't necessarily a super complex character herself that required a ton of talent to play.
A lot of the memorability from her comes down to de Armas' general vibe and presence and the way Villeneuve and the screenwriters opted to depict her in relation to K's personal story.
I mean, if Boutella were to get the job, I wouldn't complain. She's a solid actor and I can see her in the role. It's more about the overall factors that surround this specific iteration of the character and what Reeves seems to have planned for his films as a collective whole that give me pause.
Yeah, I get that her appearance is on point. And admittedly the character she plays in The Love Witch seems to be a bit closer to Selina than say Joi in 2049 is, but I'm not really sure I see much acting range from her in the trailer or that she can even play that archetype especially well. She just seems to be doing a homage to the actresses that starred in various Hammer horror films that came out in the 60's and 70's.