i agree with corgi power, dekka, and ado.
you've put the verbal cue with a slow response. You need to retrain until she's doing it reliably from some sort of hand signal, WITHOUT a lure. I HATE lures. Occasionally, VERY occasionally, they can be useful, but almost never.
You need to retrain this behavior. Start over completely. You did it mostly right, just a few little things (dogs are slightly different from marine mammals, and as you said, marine mammals don't get crated).
1. Don't use a verbal clue yet.
2. Don't use a lure. You can keep some treats up on a shelf or in the room or even in a pouch out of her reach, in your reach, but not in your hand. And don't just take out the treats because you're going to be training her. Leave them whereever you're going to put them.
3. If she goes in the crate, c/t and praise. Don't say any commands. Don't attempt to ask/put her in it, just yet. Soon she'll go in just to get your praise.
4. Go over the her crate, open the door, and point inside. She might go in. She might not. If she doesn't, ignore it. If she does, c/t and praise praise praise. If she has gone into the crate now, skip the asterisk.
*-If she does NOT go into the crate at this point when you want her to, take a treat she wants and knows you have, put it in the crate, and close the crate door. This teaches her that if she wants that treat, she better go in when you ask, or the door's closing and the treat's stuck inside.
-she might go sniff the crate, whine, and paw at it. Let her in, leaving the door open. When she comes back out, repeat the hand motion. If she goes in, great. If not, repeat this step.
5. So she's going into the crate on a hand signal. Wonderful. Give the signal again. This time, you'll add a verbal clue. DO NOT USE THE VERBAL CUE UNTIL SHE IS IN THE CRATE!. Once her two front legs and most of her body is in there, say "Crate" (or whatever verbal cue you want, she'll probably go all the way in, if not, that's fine. don't worry about it yet, but next time, don't use the verbal cue until she's in.)
6. Start backing up. Keep using the hand signals and giving the verbal cue when she's in the crate. Then, after she's got a good hang of it, go right to the crate, say "Crate" and point. She should go in at this point. soon you'll easy out the hand signal.
If she lingers, put a high value treat in and shut the door. She's no dummy, she'll realize that she better be speedy.