Just checked my city event history after I collected.
Ketebo Candies got motivated first, followed by: Archdruid Hut, Celtic Farm, Keymaster Workshops, Festive Canals, Ferris Wheels...
Cartographer Houses that produce only fragments on motivation are still not motivated. Ketebo Candies and Keymaster Workshops got motivated because they also produce forge points and goods on motivation, while Cartographer Houses do not.
So fragments are not a priority over forge points and goods in terms of motivation order, so what they did now with their latest update was to nerf pretty much anything in the event without touching the buildings stats(it would have been way too obvious I guess and players would have protested more).
The event mechanic is quite stressful for me to do on all my worlds, the event will start in the middle of summer vacations... guess I will make an effort to finish it on my main world for the main building but that's it... not worth going for the Smithy or 2 x Sunhaven Palace like I was considering right when it ended on beta.
Motivation Priority is actually all weird right now. They manually stick buildings wherever they feel they belong in the queue.
Often buildings with fragments do have an unnaturally high position - nutcrackers are pretty high (and that's a good thing because the mass aid they make can motivate an awful lot of other things).
And sometimes buildings with no good reason to be high priority, are - i.e. Stage of Ages which only produces FP and goods on motivation has the priority of a 10 FP building when it only makes 4.
My cartographers do seem to have priority over my eagles on live (but not all of them).
It's actually impossible atm to determine what will be ahead of what in aid priority solely on what it makes anymore.
My main live city's list:
1) Ketebo Candy
2) Phantom Tower - why so high lol
3) Archdruid Hut
4) Non-Archdruid Hut
5) Trading Post lv 9
6) Festive Canal/Wonder Wheel/Shinto Temple (12 FP)
7) Cartographer's House/Nutcracker Guardhouse - intermingled so equal priority (i have built a new nutcracker recently)
8) Eagle Reserve (10 FP)
9) Yggdrassil (8 FP)
and continuing on down through old buildings using the old priority list.
My beta city's list:
1) Tarot Card Caravans
2) Ketebo Candy
3) Phantom Tower of Conjuction
4) Sunhaven Palace
5) Archdruid
6) Trading Post Lv 9
7) Bear Mountain/Abandoned Asylum (11 FP)/PY-R8 (intermingled)
8) Key Master's Workshop Lv 1
9) Tree Of Patience
10) Eagle Reserve (10FP)/Stage of Ages/Golden Crops (intermingled)
11) and normal stuff carrying down - interestingly the Panda Shrine *does* appear to follow the old rules and shows up after Governor's Villa for things that do not make FP when motivated.
At any rate, point is they tweak where they want things now quite liberally. I somehow doubt anyone wants their PY-R8 motivated over a 10FP building. Particularly since there can be a lot of them, and yet there it is. Note that it's possible some adjacent lines are "tied" in priority and may appear in the other order in some cities.