I can see why the sheer quantity of typos in the report stood out to you - I'm sure you wouldn't be posting on here if it was just one or two.
A lot of schools have moved away from sending written reports at all now, and I can understand why....
If you reach one or the core subjects (as I do), it's not too bad, you will only have probably maximum 30 reports to write in each year group.
But pity the poor teachers or subjects like drama and music, who are likely to teach at least half of the year group at KS3, if not more - upwards of 120 reports in each year in many cases.
And these reports are about students they see once a week, for an hour.
How much detail can they reasonably be expected to go into about each individual child, in fairness.
My perspective as a parent is that, basically, I want to know whether my child is behaving, working hard, and understanding each subject. And a numerical grading system can tell me that.
Any more detail is superfluous really. For the subjects I am able to help her with, I can look at her book/speak to her and find out what specific areas she needs my help with.
For the subjects I can't help her with, I can't, and no amount of written report will make me able to......
When I have had to write reports in the past, I truly don't think it was a good use of my time - I feel the hours spent would have been more beneficial to the kids if I had used them for planning lessons, organising additional enrichment, reading around my subject etc etc.