The concept of "Write once use anywhere" in some programming languages.

Question

in a way do you think this concept make developers and programmers alike feel relaxed in their comfort zone and not wanting to push themselves to learn new technologies.

Answer 1

Nope.
It ia convenience so that they can get improve other aspects off their code without wasting time.

Answer 2

Then the depth seasoned programmers should possess might be lost when they only pay attention to speed of development and not quality