They reject your claim that "the vision" in Daniel 9:23 does not contemplate Daniel 9:24-27.
Scholars on Daniel 9:23:
John Calvin
"At the end of the verse, as I have already mentioned, the angel stimulates Daniel to greater zeal, and urges him to apply his mind and all his senses attentively to understand the prophecy which the angel was commanded to bring before him. It now follows, --"
Matthew Henry
"He demands his serious attention to the discovery he was now about to make to him: Therefore understand the matter, and consider the vision, v. 23. This intimates that it was a thing well worthy of his regard, above any of the visions he had been before favoured with. Note, Those who would understand the things of God must consider them, must apply their minds to them, ponder upon them, and compare spiritual things with spiritual. The reason why we are so much in the dark concerning the revealed will of God, and mistake concerning it, is want of consideration. This vision both requires and deserves consideration."
Albert Barnes
"And consider the vision - This vision - the vision of future things which he was now about to present to his view."