Then I have misunderstood, a lot of statements in the past.
Spurgeon is much admired and appreciated by independent fundamental Baptists who will have nothing to do with Calvinism or the 1689 London Baptist Confession of Faith which was compiled by Calvinistic Baptists. If you research Spurgeon's own writings, you can see how he wrestled with Calvinistic doctrines while he boldly proclaimed that he was a Calvinist as it was under Calvinistic ministering that he got saved.
My church, almost every Sunday, includes on it's bulletin an excerpt from Spurgeon's sermons or writings. Many of them emphasize evangelism, passing out tracts, sowing seeds of the Word among fields of lost souls by any means available and praying for God to get through to the lost so they can be saved. If all Calvinists today were like Spurgeon, there would be little contention among Calvinists and independent fundamental Baptists.
Many Baptist churches emphasize enjoying the grace of God in our lives more than they emphasize trying to reach the lost with the light of the gospel. Spurgeon did not encourage that doctrine of "grace". Elevating "grace" as a doctrine, equal to the Lord's doctrine of denying ourselves and taking up our cross to follow Him which will guarantee that the world will hate us and our faith will cost in sufferings, is a teaching which leans toward Calvinism. Spurgeon strongly encouraged every believer to do whatever they can to spread the gospel reaching out to lost souls. Calvinism teaches you don't have to care about that thanks to God's grace for the elect predestined to be saved, and the lost predestined to Hell.
The things that divide Baptist churches in the English speaking world (I'm sure the same divisions are in other languages as well but have nor researched them) 1) Bible versions contradicting the King James Bible 2) Calvinism (the 1689 London Baptist Confession)
3)The modern over-emphasis on God's grace separate from the teachings of the cross in which Jesus promised the world would hate us and we would suffer persecution. 4) Arminianism (which I will not comment about as it is off topic for this thread)
The first three divisive items tie in with each other in varying degrees.
A Calvinist (1689 London Baptist Confession) may be King James Bible only and strong on holiness and separation from the world, but then lean toward the overemphasis on "grace" in which it becomes unimportant to be a laborer in the field for which Jesus said we are to pray the Lord of the harvest that he would send laborers into the field because the fields are white for harvest but the laborers are few.
A Calvinist (1689 London Baptist Confession) may be King James Bible only, but they emphasize "grace" over holiness, so the passages in the Bible which require personal holiness are assumed to be covered by grace. Also, this kind of Calvinist will pass over the Bible teachings of friendship with the world being enmity with God.
Some Calvinists (1689 London Baptist Confession) are multi-version and strong on not being in friendship with the world.