More formal way of saying "sloppy"?

I am writing a formal document. It is a petition to appeal an administrative law decision. The decision is jam-packed full of sloppy mistakes of every kind imaginable. (The guy who wrote it couldn't even manage to spell the name of my town correctly in the title of the document.) I list all the errors and inaccuracies in my appeal petition, with specific references to pages in the hearing transcript and exhibits. But I want to preface the list with something that means the following:

A number of the problems noted might seem rather insignificant, but I will list them all, to show the review officer how incredibly sloppy the decision is. OR: what a slapdash job the hearing officer did in analyzing the case and writing up the decision.

Only I can't say "incredibly sloppy", I need more formal language. I need a more subtle way of saying sloppy.

I don't mind making adjustments in my sample sentence to accommodate a different part of speech or whatever.

Note, the following question is somewhat related but doesn't. A word for not paying attention to detail, causing sloppiness.

One idea:

A number of the problems noted might seem rather insignificant, but I will list them all, to show the review officer the shocking lack of care taken in analyzing the case and documenting the decision.

Another idea:

The hearing officer's slapdash [or: haphazard] analysis and write-up resulted in erroneous references and errors of fact that are too numerous to list in the space allowed. I will only be able to provide corrections for a portion.

Solution 1:

You could describe the situation thusly:

This decision is misguided because it's based on an inaccurate report. The report is littered with errors which grossly misrepresent the true state of matters.

No need to blame the officer directly, simply emphasizing the poor quality of the report will sufficiently imply blame without any unprofessional accusations.

Solution 2:

Sometimes, simplicity is the best approach.

The problems noted might seem rather insignificant, but I will list them all, to show the review officer how strewn with innumerable errors the decision is.

For a harsher sounding approach

The problems noted may appear insignificant to an outsider, but in order to clarify my dismay at the decision, the most significant and shoddiest errors will be listed.

P.S the past participle of strew is also strewed

P.P.S Deleted previous second suggestion, see edit history, in light of recent edits made by the OP.