Trafalgar pretty much needs to be ignored. Or if you are going to pay attention, add 6 points towards the left. The only redeeming quality about them (and Rasmussen) is that it evens out the outlier polls that go high the other way. Better to have a real spread of polls averaged, because quality pollsters usually have an outlier now and then (ie. Quinnipiac with GA at Biden +7), which means they are staying true to their standards and they aren't following the lead of the others. But Trafalgar is always an outlier to the right.
If you take the A and B rated pollsters polls of MI over the last 5 days, it averages Biden +7.8. Which is exactly where the current avg in MI stands on 538.
And if it eases your mind at all, HarrisX just had a Biden +11 in MI today, which for HarrisX is kinda wild. So the outliers are good to keep in the mix for a better overall picture of things, and to keep the averages in check.
For example, Pretty much every CNN national poll has been an outlier this time around. They had Biden +14, then 4, then up 16, and so on. But if you take the average of the 5 polls they've done, it comes out to about Biden +9.