The answer above is not entirely accurate on 2 specific points.
Council consultee comments are NOT exactly the same as public comments since council comments to “support” or “oppose”, if they differ from a delegated officer intention, DO activate a 5 day protocol which requires the local council to review their submission and adopt 1 of 3 positions - maintain the objection and provide valid reasons for doing so (might include seeking local member support for calling the application for planning committee consideration), reverse the support or objection based upon case officer advice or “agree to disagree” with the case officer.
This protocol is NOT activated with public comments so it is evident that local council comments are NOT simply the same as public comments.
That said, I would agree (based upon personal experience) that local council consultee comments are often poorly considered, inappropriate and therefore dismissed by planning case officer.
In regards to a complaint - you can complain about an individual Cllr, you cannot complain (to the MO) about a decision of the council.
I can agree with the principle that planning case officer is likely to see through petty and inappropriate local council pettiness.
You can Google search the principles of planning conditions, they must be
Necessary
Relevant to planning
Relevant to the development permitted
Enforceable
Precise
Reasonable in all other respects
https://www.local.gov.uk/pas/development-mgmt/conditions/effective-use-conditions
And it is for the planning case officer NOT the local council to impose planning conditions.