I wouldn’t nitpick on an example, but it exactly illustrates my earlier point:
Halacha clearly defines which chametz you must get rid of. You must only check until the place the hand reaches. Further in would therefore be pointless – it is not considered a place where you ordinarily use, and so there is no chiyuv. It has nothing to do with Chazal exempting you from exerting yourself beyond the sensible. But until that spot, you might need to do “outlandish” methods of ensuring it is chometz free.
Your other example of the matzah is much better. Yes, that is a means which you are not required to do. But not because it is outlandish – simply because we have clearly understood definitions in halachah which you can satisfy without it.
And so in this particular issue, you will need to illustrate that you can be confident that you got rid of the bugs to the extent that you are clearly not required to clean further, in order to label these methods as outlandish. And as DY is trying to tell you, speak to an expert in the field and you will see that this is not the case.
Gut Voch.