Miss Martian and Raven could probably sort Ric out in like a second, but whatever. That’s a why doesn’t Batman just call Superman situation. So I’ll give them a break there.
But Ric not knowing what memories are real at this point is just moronic. If it’s not blatantly obvious to him, which it logically should be, he can just turn on the news or google it. What’s more they have him asking a question that doesn’t even matter, cause he’s neither Ric the Talon or Dick Grayson. He’s Ric the homeless nothing. Neither memories actually matter or effect his current character anyway.
Quite frankly too much of Ric relies on its creators thinking their readers are either too stupid or just aren’t going to care about these kinds of things. It’s just textbook bad writing bred from laziness and not actually giving a crap.