Mostly the circumstances of the TZ lineups are exclusive by circumstance...eg you can't be contacting enemy with your front edge if they are behind you, and you can't move forward to contact if you are already in contact.
But AFAIK a front corner is not a front edge, and so the 3rd bullet does not apply.
also they are not "sequential" - the first one applies - and it does not say that you wheel forwards (thus contacting 2 elements) then slide sideways to contact only 1 of them - it says that you have to end in front-edge-to-front edge combat with the element most directly in front - and so that's what you have to use hte EMTLU for - not for any theoretical intermediate steps.
On the whole I agree with you. However if you are in corner contact with an enemy edge (but see below), there are only two ways of geting into contact lined up using pivots and slides. One is to pivot backwards until the extension of your front edge passes through the enemy front corner, then slide sideways to corner-to-corner, then pivot forwards into edge contact. The other is to pivot forwards into edge contact first, then slide sideways to line up.
Figure 9d appears to contradict what the rules say as it shows an element about to make a move into front edge contact in a way that is not a permitted option in a TZ. Spear C is neither in contact with X's front edge nor is it most directly in front. If X came in from outside the TZ (this is not specified onthe diagram, but is the only way to make the diagram consistent with the rules) then C would be the TZ-ing element most directly in front at the time X reaches the TZ and bullet 1 would apply.
The options permitted in a TZ do not allow you to move into corner contact. We play it that you can move into corner contact and then use an EMTLU (and IMO this was intended), but strictly speaking this is not in accordance with the rules as written.
If using a normal move to enter a TZ you can wheel to end lined up (possibly in contact) (bullet 1), paying the PIPs to wheel. You cannot stop short some distance away and use the EMTLU to wheel into a lined up position unless you use your full move distance in the normal move part (bullet 4).
You can move straight ahead so your corner almost, but not quite contacts the enemy (bullet 4) and pay PIPs for a short move, but you can't move the corner into contact. You could then EMTLU to line up not in contact. It may be possible to get yourself from not in contact into contact by the right combination of pivots and sideways movement.
If you are parallel you can move straight ahead into front edge to front edge contact not lined up (bullet 4) then EMTLU (bullet 3, which does not force you to line up with the one most directly ahead, so you have a choice).
IMO accepted practice is more permissive than the written rules and 1.1 would benefit from a rewrite to make it absolutely clear what is intended.