Going to try to ignore this, since as far as I can tell, that's what you want.
.
As to the point itself:
No.
Again, you're narrowing down the definitions of terms until they mean something vary narrow (and disparaging) to make a sophistry point of "technically, by definition...", except you've so narrowed the definition to where it's meaningless.
Potential: Capable of being but not yet in existence; latent or undeveloped.
Every Job has this. When you try to narrow it down to "only complete changes from what it is now to the point of abandoning what it is now in favor of something else", that's not how potential is defined.
Similar exercise with the concept of limited - you say within some constraints of the Job's design, but this is true of literally every Job in the game, yet I don't see you calling them this same thing.
Now you're using the term evolution/"evolution of the design of the job in a meaningful sense", which is PACKED with baggage. That's a lot of terms that could be defined a lot of ways and a lot of qualifiers instead of you just saying "You're right, it has potential and isn't really that boxed in". And never mind we're already multiple steps from your original statement:
^ that was what you said. "where can they actually go" with it and "it's a dead end" not "a solid foundation".
It's clearly not "a dead end" the way you were using the term as they CAN clearly go a lot of places with it, which would make it, by your terms used there, "a solid foundation". You were incorrect in that post.
Now we're several steps removed from that worth of goalpost shifts on your part to "evolution of the design...in a meaningful sense". If you want to have a separate conversation we can, but we need to tie up the above one first that started this. Your initial statement was incorrect, and you've moved the goalposts several times to avoid admitting that, complete with (as is custom) a disparaging attack on me in the process.