Zaybay always discredits the Pollster because he doesn't like the Numbers. This isn't just an Anti-Republican Year, it is a anti-Incumbent Year for people in Washington and Nelson has been in D. C. for 18 years and has done nothing good for Florida.
Its literally one Scott +2 poll. If Nelson were leading by 2 in this poll, I wouldnt jump and declare him the victor, especially if DeSantis were leading in the governor portion.
You did say the race was Lean D in a thread about a poll that had Scott winning though.