Errr... not sure I'd call Marion objectified, or Elsa. Willie... maybe? I also wouldn't call Ellen Brody 'docile,' even before Jaws IV. She had a minor role, but not a lack of personality. I also wouldn't say bad screenwriting in The Lost World translates into any poor portrayal of women in The Lost World; yeah, having the daughter along was ridiculous, but neither she nor Sarah (that I can recall) were particularly anti-feminist, just as badly-written as everything else in the film.
Haven't seen the other films, so I can comment to those- so I think that case shouldn't be overstated.
In terms of the original Jurassic Park- I didn't real see a lack of competency or agency in the male characters; Muldoon knew what he was doing (but got outfoxed), Ian Malcolm and John Hammond were perfectly competent, and Alan Grant was practically an action hero in numerous scenes. I mean, sure, there was that one idiotic line where Ellie adds the whole 'woman inherits the earth' bit as if it's clever, despite the fact that 'man' was clearly referring to 'mankind,' which includes women... but that was more of clumsy early-90s 'trying to do gender politics better but hadn't quite got a handle on how to do that so let's just have the woman say 'girl power'' writing, rather than anything thematic to the script. But while Lex and Ellie were both given competencies, I don't think that either were unaturally strong, nor their male counterparts unnaturally weak.
All of which to say- I don't think there's a particular case for Spielberg either nerfing men for a 'feminist' agenda or nerfing women for reasons of sexism...
...And all of this is very
off the topic of Godzilla 1998.