Don't believe everything that you read unless it's backed up by an official source.
But it was true
No it wasn't. If it were true she wouldn't have been seeded and drawn in qualifying.
It was/is true - she's in the MD
And even if we're talking timing, she could have been in the qualis by mistake - i.e. she was in the MD all along but the referee made an error, so she was never really in qualies, whatever the draw said
(not saying that happened, it doesn't matter, the truth is she's in the main draw, stated then, proven to be true now )
If a tournament director can give a wild card to Hajar Abdelkader, then it is certainly possible for Katie Boulter to be left in the qualifying draw. But it would surprise me for a player to be replaced in the main draw without the replacement being removed from qualifying. Which suggests that the main draw withdrawal hadn't been officially made.
But ultimately no one loses out - except perhaps the next two players to be seeded in qualifying. Probably not a hanging offence.