You don't have to receive those services to give a lady a 10, but she has to offer it. If she does not offer certain services, then she can not get more than a 7.  
Of course this concerns the second 10 in a 10/10. (the performance score) There are no rules for the first 10, as looks are subjective and beauty is in the eye of the beholder.

The alternatives are a bit unsettling as I size them up.

As long as the required services are offered for a 10, she can get it.  Looks are up to you.  

And the session ended with her jerking him off... OR him jerking himself off... or him rubbing on her feet or stockings etc...?? Really the possibilities are endless if you have a kinky imagination!

And the guy felt she gave him a "10." But if the "extra" menu items are not offered, she can't get more than a 7 even if she pees champagne and shits ice cream.

And being open to dominating more than one guy at a time could make a pro-domme elligable for a 10.

We are actually in agreement. I am not arguing with you. I said in my first reply to the OP that a lady can get a 10 if she offers the menu itmes that allow her to get a 10. I said the same thing to you. In your example, You are showing specifics of how a lady can get a 10. I never showed specifics but just the general statement based on TER rules. We know, (and anyone who doesnt know can look it up on the review page) there are 5 items (or extras) that if offered, allow a lady to get more than a 7. Offering any 3 of those 5 will allow her to get a 10.

It sounded like you were saying that people needed to provide all 5 activities to warrant a "10."  I was clarifying that each additional "possible" activity raises the "possible" score +1 from the baseline top score of 7.

If she's NEVER done any of the above, the first reviewer can't say "Yes" to any of that shit, because he does not know. His answers should only be "I don't know" which does not make her eligible for a darn thing, unless she "claims" she offers them and reports a problem.

If the lady offers (1) kisses with tongue (2) really bi (3) more than one guy, bingo she can rate a "10" for performance.

There's lots of rumors that they might have existed somewhere, at some point in time... but no one has been able to prove it! Lol.

I think there should be a deduction if a provider doesn't offer BJ (covered or BB) or vaginal sex (covered of course).

There's no other girl there for her to be "really BI" with or no other guy there? With tongue and bbbj she would only get a 9. She can claim she's really bi, but if no other women is around it isn't really an offer.  

The real key is to read the reviews and get a sense for whether the overall experience is one you would enjoy - often reviewers, including myself will state in the review that TER rules limit you to a 7 (or whatever) but that the experience is a 10 in the reviewer's eyes.  Reading reviews give you a sense of her personality - businesslike, girlfriend like, enjoyable to be with And chat with, how the sessions flow, etc.  if you only go by numbers you are missing out on many very fine ladies.