I respect your opinion, but I don't agree. I was very open to the new IT films and I didn't go in saying "this better be exactly like the miniseries or else!" because, let's face it, the miniseries is heavily flawed. However, I don't think the new films are good, even putting aside comparisons to the former.
The child actors are wasted and, imo, kind of odd. Their stories lack substance, which makes no sense for such a long film. The story is absent of any subtlety, which is why the new film feels too over the top to be scary. And the clown isn't the central villain, so I often found myself asking - would this be a better film without Pennywise? And the answer is yes. Which kind of renders the movies pointless.
As for comparison to the old miniseries, I think that the campiness works for laughs - because, let's face it, the experimental nature of 90s TV was a hoot. However, the new films don't really have this to lean on and I don't see myself revisiting these films. And there are truly iconic scenes in the 90s miniseries. The washing line and the red bike. Pennywise in the shower. The use of the flipping and bleeding photo albums. The use of balloons throughout. Those really stand out to me. Nothing like that in the new films. They recreated, but in a less engaging way.