It's kinda shitty of her to throw shade like that when it was her choice to leave which she regretted fast and started humping Star Trek's legs to be brought back several times which Berman didn't have to do but did anyway. She's been doing conventions and fan documentaries and has appeared in a fan film, she has been profitting a lot from being on Star Trek for a very short time.
So now Berman is playing nice, pretending Tasha was a relevant part of TNG and not just a supporting character in the shitty first season that half of the fandom skips for rewatches and she thinks it's a good idea to respond like that? This makes her look ungrateful because like I already said, she wasn't forced out, she made the choice but boo fucking hoo, Berman forgot episodes were shot out of order 30 years ago and he took the combadge ... so what?
I really don't get it, his tweet might not be 100% accurate (but we have no idea if her recollection of the events is, human memory is kinda crappy) but he's basically telling the world he kept a memento of her character for decades which should play right into her hands.
I think it's healthy to not buy either person's story, to be honest. Both have a vested interest in making themselves look better, leaving aside the questions as you say of if either of them is actually remembering the event from that long ago correctly.