Congratulations on the progress.
Ebbetts is deceiving as it is just a “few” neuromuscular tags during the interval. 
You haven’t seen anything like this during SPB1 and it may have been a bit harder since it does require more muscular recruitment.
The bump in FTP also means a similar increase in energy expenditure per TR workout. Congratulations you are burning 33% extra calories per TR workout relative to your previous FTP. This is significant and as other posters point out, you need to fuel for this, and manage your other stress and TSS accordingly. The commutes need to be easy, easy.
Listen to your body, get adequate rest, fuel and you’ll be knocking on 300W in no time. Cheers.