Actual Infinity in Reality?

[Neo-Scholastic]

This is all to argue that the past can't be infinite, therefore God made it on His cosmic watchmaker's bench.

Not really. Thomas Aquinas, at least, felt it was indeterminate and did not matter with respect to the 2W once you account for the distinction between accidentally and essentially ordered sequences. Why do you believe it impossible to discuss have a purely metaphysical question without delving into the theological implications? Seems to me like yer itchin' for a fight.