Well, the problem is the testing method. There are some issues.
I know which are the direct and indirect dependencies of extension created by myself and can adjust .dep files of my own extensions, but not necesarily others used in the test.
One test is to look for changes booting the system with the changed dep files. This can be done with the limitation see above for LXDE and Xfce as a good example having long and longer dep lists
The other test would be to see installation from the repo with appbrowser on a stock system using the new dep files. It requires not only new dep files but an online test repository. Having a test repo would be really useful for in vitro testing.
I'm ready to correct my dep files. However such test (and also the transition) requires work of all extension makers and a longer, few weeks test period.