There was almost no plot for 1/2 the movie, then it was extremely weak plot, then it was a bad, predictable twist. This is why I couldn't figure out what the movie really was about from the trailers--it wasn't really anything but a broad introduction for more movies, which is why it (IMO and a lot of others') sucked so bad. It was basically, "So there are these eternals..."I think Eternals may have been too much for the general public. To a comic book kid I enjoyed it. Though introducing the celestials is tough to incorporate into the MCU imo. The universe is expanding at an exponential rate. I think it becomes difficult for the casual fan to keep track off.
That said, I’m excited for the introduction of BK (won’t expand on that without spoiler).