Though, wouldn’t be a more elegant solution to have a ‘teleport to’ option whenever a forward spawn is captured? Like a vote message:
Nop. What is good with self kill, is that you take a risk by killing yourself. You need to make a sacrifice for your team, this is the best part of the teamplay !
I don’t see where is the problem with this mechanics. This is not a flaw, this is a deep and good gameplay option. And it is the accumulation of this kind of elements which made ET and ETQW really fun to play (like the bugs of the id tech which create the differents trickjumps).
IMHO, there are no actual standards, the majority of current FPS are too limited, too simplistic, too “unruffled” and so, not fun.
The FPS which is the more played, CS, is based on old mechanics.
They doesn’t try to re-invent the wheel, they improve it without deforming it.

A classic noob fault or inattention. But that’s what I like about self killing, you have to learn it to get it right and you can also master it when more complex situations in a clan match for instance come along.