yer B738 is certified to accomplish 2.4%, reduced to 1.6%,
after airframe/pilot technique-this is 2nd segment (most limiting) out to 1500'AGL (No ET)
Your TRI was inviting comment on terrain clearance/airspace gradients.So you then need to address the most important(to you) and make a judgement whether you can meet them.
Your call???
Vino
edit-sorry-wrong figure in there