PLZ brings up a good point.
Supposing magic had the same restriction = back to nuts and bolts discussion.
4e took a different tact.
Making the various "summons" into a 1 HP construct-ish thingy,
gives a comparatively simple math fix.
Just straight nerfing 3e summons to have that same kind of 1hp,
would require be-balancing the relative power of summons to encounters.
So I don't think 3e would work very well going this way.
Even though I like it 4e style.
Erudite with magic mantle and whatever Discipline option,
"ought" to be able to yank all the magic goodies over to the Psi side.
That would be the best summoner ... on round 2 and thereafter.