I'm not sure I buy that unless you have a specific quote in mind. While he quotes Strong many times, my impression is that Culver (despite being baptistic) is much more influenced by Shedd than Strong. He leans on him heavily at certain points (traducianism, a nuanced view of limited atonement, and more.)
While it is an important work, there are things to beware of in Strong, perhaps moreso than normal for writers of that era, most if not all of whom accepted theistic evolution. Admittedly I'm basing this on
a post by Paul Martin Henebury although I want to say I've seen problems with Strong discussed elsewhere. Henebury is a dispensationalist, but he doesn't slight authors just because he disagrees with them, as can be seen with his laudatory comments about the Reformed ST texts that he mentions.
For what it's worth, Henebury gives a full review of Culver
here.
Interestingly, while Culver quotes Reymond (1998) many times, I've yet to find Grudem (1994) in the book even though it was published earlier. (I've found things in the text that aren't in the index, so maybe he's in there somewhere!) Culver's ST was written over about a 30 year period, and you can see that some sections are a bit more "dated" than others, but other sections include citations from this century. My guess is that he didn't think that Grudem added much to what he already had moreso than some thought he may have had that Grudem didn't rate as a theologian. Regardless, Culver not interacting with charismaticism in any detail at all is probably one of the weaknesses of the book given the fact that more and more of evangelicalism is continuationist if not full blown charismatic.