Yes but that’s true for every Govt budget. Hence states pave roads and use all their budget money or they get less the next yr.Because we spend too much and waste too much. Our military is not underfunded at all, just poorly managed from the top down.
I used to get in trouble as the Operations chief of an FA18 squadron if I did not use all the TAD money by the end of the year. We used to send pilots on cross country flights they did not really need to use up the money. NAS Key West is very popular for that.
We would go shopping every August to spend every dime of our supply money, whether we needed anything or not.
Just getting rid of the "you must spend it all or get less next year" mentality would save more than people realize.