Aristoclis' reasoning is on the money. That's correct. Alternate law (with or without protections) can not give FLARE mode. It would feel very strange and unconventional attempting to land with pitch being given as a load factor. The gear being selected down generally means you are going to be landing which is why Direct Law is activated at this point.
Incidentally, the only (to my knowledge) occasion of going from Normal straight into Direct law on gear down selection is a dual radalt fault. For similar reasoning, the 'system' won't know when to blend in FLARE mode due to no radalts, that's why direct law comes in.
Hope this helps.