IIRC they did not use consultants to decide the software.
They did however ASK FOR OPINIONS on the choice of software.
That consultation did not generate much response so nobody can ever say they were not consulted. Forum software open discussion and suggestions feature requests.
They did however hire a discourse team to help with the ACTUAL migration and that team has gone above and beyond to try cover as many issues as possible.
Other real issues and even some aesthetics are still on thier To-Do list.
New issues I am sure will come up and where they are VALID and I am sure they will do thier utmost to look at them.