So I've spent my work day thinking about why they wouldn't want to give vanguard a way to spend points at level 1 and the only thing I can think of is it would make for a powerful 1 level dip.
With that in mind there are still things you can do, they just can't be too good. A spell that scales with vanguard could be a nice answer, or perhaps you can spend an EP to disengage without a move action. Holding onto half ep for future fights would mean less resolve points make their way into generating EP. There's a lot that can be done still to make the class feel less hollow at level 1.