It doesn't rule out a cap issue or restore the caps. We're just working the known issues with mac classics here.
So issue 1 on the list is cap fluid on the motherboard causing a non boot or delayed boot(needs to be cleaned), issue 2 is the RAM or RAM board causing similar problems(needs to be removed or replaced to test). And issue 3 which is most likely the problem with my classic, the PRAM battery is causing problems with the SoftPower circuit as it is very low or empty(so needs to be replaced). Issue 3 is not very well known but is definitely a possibility.
Obviously if caps are on the way out they will eventually need to be replaced and the dishwasher/oven fix is only temporary and may get you a few more weeks/months/years of life depending on how bad the leak is.
In my case I'm not even sure the caps were leaking but i was just working the numbers.
Nice starting point though, its handy that they used socketed proms etc