remove rod from brake booster

[K10-Kansas]

Hi all. Thanks in advance if you can help me with this. While bleeding the brakes my brake pushrod bent clear to a 45 degree angle where it screws into the clevis. I think it wasn't threaded deep enough.

Doesn't the pushrod pop straight out of the back of the booster to remove it? I gave it a few hard pulls and couldn't get it.

Second, isn't it kind of ridiculous that this thing bent so easily? My wife was pushing the pedal while I was bleeding the brakes and wow, I really think these things should be stronger.

And thirdly, can I put in any old pushrod so long and it screws into my stock clevis? Like maybe this universal one?