The solution to the apparent contradictions in the Bible is not obv Dispensationalism. Dispensationalism is a stretch explanation for them, a minority report. The majority report is some form of ancient Christianity, whether it's Catholicism, Ethiopian Orthodoxy, Eastern Orthodoxy, English Anglicanism, or something like that. The next most popular view would be a Protestant communion like Lutheranism or Presbyterianism, or Congregationalism, or Methodism. But only after those would we start to consider any form of Dispenationalism.
This doesn't refute Dispensationalism, that's not what I'm saying, and that's not WHY I'm saying it either. You just, if you're any form of Dispensationalist, you need to defeat the claims that all these other Church traditions have. They all claim to precede Dispensationalism, in claims to being the Church in the Bible. Dispensationalism is claiming to be the Church that Paul talked about, the Body of Christ. Dispensationalism is not first in line, in making that claim. There are many older traditions ahead of them in line. So Dispensationalists can't just say, Oh we're obv first in that line. Not without defeating everybody else's claims, who have been staking their claims, for a lot longer than Dispensationalism has been around.