No, I didn't say I let folks run them out of the book, but meant that it was fine for those who wanted to in their games.
For me I thought a +4 to the save was a tad high, and the ability to sustain themselves by psionic points also seemed a bit over the top for the concept I had in mind. Those are the only two things I changed, and I feel they're minor changes at that. It's not a thing I expect everyone to understand or care about, but it works for me and my group. There's only one player in my group who plays a psionicist, and it's a Human, at that.
In my setting they're a race called Ransoori, which goes back as far as 1991. They've always been a "race of former conquerors, now defeated and exiled to far away places", so they were really an NPC race for most of the years. With the Elan, I was able to make them the way I envisioned them.
I'm also a pretty flexible GM. IF, and that is IF, someone wanted to play an Elan as it comes from the book, I MIGHT let them. Since no one has ever mentioned playing either an Elan or the homebrew Ransoori, it's not been a big issue. Again, it's really a flavor thing over mechanical, and it works for us.