Definitely not... (hfP?)
This has been planned for a long time - at senior management level, their internal roadmap would have shown the Intel transition to ARM for the last 2 years so they can have everything in place for the end of this year. The decision to replace MBP was not because they updated MBA this year - the decision was to update MBA on Intel instead of moving it to ARM...
This is not move fast and break things territory, this is carefully planned corporate strategy. The question is still relevant as someone senior in Marketing made the decision to transition the 'professional' model(s) before the 'consumer' models It seems odd to me but, that's why I don't get paid big bucks for making the decision :)