Not in its current form and when it also available on pioneers.
To put in perspective "field first aid" ability where used in 4 games out of 40 and 11 times total (WC19) and I would have to guess that 3 of those games was when the infatry doctrine was chosen and it was actually free.
So on it is not really useful.
So I use it all the time and I find it super useful, but it's not because you say so.
Okay