The most reasonable option is:
Yes, his career is static and needs to change.
If Luca has been unsuccessful in advancing his career despite his efforts to seek guidance and mentorship from his boss who is unresponsive, it may be a sign that he has reached a stagnant point in his current role. Seeking new opportunities could offer him the growth and development he desires. However, he should also assess his current situation fully, including the potential for development within the company, before making a final decision.