Not quite sure what you're saying, but if you're suggesting we're just catching a larger percent of cases we were missing before, that's really unclear. We don't have enough data to conclude one way or the other.
If ability to test is growing at the exact rate the number of actual cases is growing, then increased ability to test is neutral to case growth rate.
If ability to test is growing faster, then it's inflating the growth rate
If ability to test is growing slower, then it's masking the growth rate.
Increases ability to test is not going to impact the death growth rate (unless we weren't testing people who were severe enough they died and we now are)
We just don't have enough data to say, but the rate of changes in deaths a week from now will be a better indication of what the increase in cases actually means, and in 10 days or so will start to show how much the efforts at isolation are helping.