Yes, I know.

RC reset solutions really are miserable. Getting them to work for a normal power on is the simple part.

But they will never correctly handle slowly dropping VCC where EEPROM, flash, ... needs to be protected from accidental writes.
And they will never correctly handle a power on where power first comes for a short "bounce", then goes away and the comes back.

So RC resets should be hunted down and be terminated. They are lousy. Especially so since they can be made to work perfectly in laboratory environment where power is applied distinctly, and where power is removed distinctly (since the test subject is run without big capacitors and power is removed using a laboratory PSU or similar).

They seem to work so well until the equipment is sent out in the real world. Lots of people don't even remember to test their designs with pulsed power or with slowly dying power.