Actually, I was totally on a different page on that. Apologies. Obviously there IS a current limit setting in the bios, probably in XTU as well, but since I don't use it and rarely have played around with it since I've always done all my overclocking in the bios, manually. I don't use MCE because I manually configure every system, including my own, to the settings it's stable at just below it's actual plateau.
I think MCE and other "automatic" types of overclocking, and yes, MCE IS a form of overclocking since you are forcibly configuring the CPU to maintain clock speeds higher than what it's default configuration is, are foolishly dangerous and and if not dangerous, at least they are certainly not the better option since you are allowing the system to control all manner of core behaviors such as core voltage, system agent voltage, VCCIO voltage, load line calibration settings and more.
The end result is a configuration that pretty much always uses more voltage across the board than what's required to be stable at that clock speed, without regard to current limits, core temperatures or how the increased thermals might affect other components like the memory controller or VRMs.
So no, I'm not saying that, not in that way at least. Again, apologies, as I know that's what it sounded like.
If you wish to leave your configuration this way though, then you actually MAY want to fiddle around with the current limits. I've never found I had a need to do that, because none of the systems I've configured or tuned ever had an issue with current limits, even at very high overclocks. Admittedly though, I have not worked on Coffee lake yet so the additional cores might definitely be an added factor in this regard.