I fully understand the anger and upset, but Reby really is doing herself (and Matt probably) screaming at people on Twitter. No one really is looking good here, Tony said he initially called for the match to be stopped but the doctor told him Matt was okay enough to do the finish which it was allowed to continue. The doctor was out there with Matt so it was probably some combo of Matt not wanting the doctor to stop it, and Tony probably being naiive enough to believe he was okay when he was obviously out on his feet moments before.
Assuming for a moment everything said was true (I know), the doctor is either really bad at his job and not able to determine someone wobbly AF after a blow to the head was not fit to go on OR Matt's Broken Powers are real and he somehow managed to Jedi mind trick the doctor into saying he was okay.
Or.....everyone involved realized they fucked up and there's some ass covering going on.
Honestly I'd probably wager that the doctor really didn't want to be the one to call it and asked Matt if he was OK before telling Tony "he's okay to do the finish". Then we all saw him nearly falling off the lighting rig and everyone panic'd.
You see it in (American) football all the time, in theory the team doctors have the authority to sit someone down but they all know in reality there would be a shit storm rained upon him if it was someone of even medium importance getting pulled.
Hopefully it's a learning experience for all parties, and everyone will do better the next time an obvious head injury takes place.