There are other models @GJDS, they just do not appear to fit the data without invoking miracles. We have considered one elsewhere… (e.g. @glipsnort tried to see if he could make a recent sole-ancestry model work with HapMap data (we got close, but not fully there). Can someone explain like I'm 5 yo, what's wrong with this refutation of Biologos? - #16 by glipsnort
Also in The Biotic Message Walter ReMine proposed a model. I liked it. Though, it was falsified by the data. Others, like Hugh Ross at RTB and Todd Woods also propose models.
My point is not there is only one model. Rather there is a large number of patterns in the data that are only (as far as we know) explained by CD models. There are many CD models too, and we are regularly testing between them. Maybe there is a non-CD model that explains these patterns, but we do not yet know it.
I suppose a “deception” model would work with the data, where God is trying to deceive us in the data by making it look like it is the product of CD. But I do not think any one takes that seriously, it wouldn’t be the Christian God, and also concedes the point that data clearly points to common descent. That just makes my point stronger.
Don’t misread this @GJDS we consider models other than common descent. CD is the only one we know of that works with the data. This isn’t definitive of course, but that is why science settles on this conclusion.