There's no entitlement that I can produce all kind of spam and they have to be included in one or a few blocks (for peanuts).
Guess what, there's no kind of requirement of that for miners either. Even with no block size limit at all. So moot point.
You pay the fee, you are in. In a timely manner.
Unless the block is full and yours happens to be amongst the lower fees *no matter what fee you actually attached* and *no matter what miners would be willing to include your transaction for*.
Go down the post office, pay first class for a parcel to your mother to arrive in time for her birthday then watch in amazement as she doesn't get her present and the post office guy explains "The guy over there wanted to pay more so we threw your parcel in the back of the storage room, LOL"
You pay the fee, you are in. In a timely manner.
OK, what is "the fee"? I want numbers.