On those 2 remarks I like to respond:
SCS just released the OFFICIAL version, I am trying to understand why some assume that only then TruckersMP can see what changes are made.
ATS and ETS2 were and always have Public/Open BETA time, at that time also the patchnotes are available, so they can use partly the Public/Open Beta to adapt the MP. (at least if I could do what TruckersMP does I would use the Public/Open Beta to see what changes MP needs and make it as far as I can)
Doesn't mean that once the Public/Open Beta is done and SCS releases the OFFCIAL version that the MP is updated within few hours, it still takes time to make the final adjustments I can imagine.
But assuming they can not do anything before it is official released is also understatement in my small mind.
Anyways MP will be done when it is done in their free time and until then downgrade or live with no ATS/ETS2 or try singleplayer