This is inevitable.
The 2t Hondas they use are older bikes now.
And, as in racing, bike sponsors have, mainly 4ts to give, and what they want to promote. They'll get a lot of change over amongst the 'extreme dudes'.
EFI has made the 4ts a damned site safer than they are with a carb, when it comes to all the gymnastics the bikes go through.
It is, what it is.................