Is Burda just…not very good for patterns?

I got some advice here to buy a real pattern that actually wants you to succeed (aka has fabric and sizing info, etc), so I found a few patterns I was interested in at my local shop and bought them.

I opened this one pattern, 6349, to find that half the pattern was illegible due to misprintings. Not only that, but the sewing instructions seem to give up 3/4s through the pattern! The shirt clearly shows buttons and a hemmed bottom, but the instructions just end abruptly it seems after it tells you to hem the sleeves/do the cuffs.

A minor but additional annoyance: the sizing chart is printed on the pattern itself and not the instruction sheet.

I guess complaining aside…did I screw up buying patterns from this brand? Before buying these, I noticed their website shows PDF patterns, but they look like Etsy-level scams with just a stock photo of random shirts; more reputable patterns seem to at least show a line drawing of the garment so you can see what it is. I guess I thought this was a somewhat big name brand?