Lessons, goals in a position and rating

Hi folks,

I hope this is the right place to discuss a - at least for me - sometimes frustrating issue regarding the lessons. I'll show an example: https://www.chess.com/lessons/view/7212

In the position from the link above I found the solution 1...a1Q 2. Bxa1 Ka2 with zugzwang pretty quickly. After I moved 2...Ka2 I was told that this would indeed win simple and clean after 3. Bb2 g6. Instead of having the lesson solved I had to find a more complicated solution with 2...g5 3. hxg5 Ka2 4. Bb2 Bg6 and the same idea of zugzwang. I missed the latter (why sacrifizing a pawn unneccessarily?), tried 1...g6 which also wins easily but also wasn't the official solution, played - meanwhile pretty angry -  2...Be2 next (which also keeps a winning position but doesn't make progress) and was finally rewarded with -5 points.

In all the lessons I did I found at least 10 - 15 similar examples, additionally a few lessons where annotations or hints were either confusing, meaningless or even wrong. I really appreciate the hard work behind all this training stuff, but these frequently occuring flaws are somewhat annoying. So here are my questions:

1. Are all the lessons reconsidered from time to time?

2. Does it make sense to notify the staff by sending an error report when discovering such errors?

Thanks in advance

acepoint